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1. An electrophotographic photosensitive member comprising:
a support; and a photosensitive layer formed on the support; wherein the photosensitive layer comprises: (a) a gallium phthalocyanine crystal, (b) an amine compound represented by the following formula (1), and (c) a polyvinylacetal resin having a repeating structural unit represented by the following formula (2): wherein R1 to R10 each independently each independently represent a hydrogen atom, a halogen atom, an aryloxycarbonyl group, a substituted or unsubstituted acyl group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted aryloxy group, an amino group having a substituent, or a substituted or unsubstituted cyclic amino group; and at least one of R1 to R10 represents an amino group substituted with a substituted or unsubstituted aryl group, an amino group substituted with a substituted or unsubstituted alkyl group, or a substituted or unsubstituted cyclic amino group; and X1 represents a carbonyl group or a dicarbonyl group: wherein X11 represents a substituted or unsubstituted ethylene group, a substituted or unsubstituted propylene group, or a substituted or unsubstituted butylene group; R11, R12, R13 and R14 each independently represent a hydrogen atom, an alkyl group or a methoxy group; and Ar11 and Ar12 each independently represent a phenyl group having at least one electron donating substituent.
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