65479280

素因数分解:

$2^4\times 5^1\times {\mathrm{521}}^1\times {\mathrm{1571}}^1$

素因数の和:2105

約数の個数: 40

約数和(自身を含む): 152628624

約数和(自身を除く): 87149344

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 521, 1042, 1571, 2084, 2605, 3142, 4168, 5210, 6284, 7855, 8336, 10420, 12568, 15710, 20840, 25136, 31420, 41680, 62840, 125680, 818491, 1636982, 3273964, 4092455, 6547928, 8184910, 13095856, 16369820, 32739640, 65479280]

約数ペア:

[(1, 65479280), (2, 32739640), (4, 16369820), (5, 13095856), (8, 8184910), (10, 6547928), (16, 4092455), (20, 3273964), (40, 1636982), (80, 818491), (521, 125680), (1042, 62840), (1571, 41680), (2084, 31420), (2605, 25136), (3142, 20840), (4168, 15710), (5210, 12568), (6284, 10420), (7855, 8336)]