74878120

素因数分解:

$2^3\times 5^1\times {\mathrm{521}}^1\times {\mathrm{3593}}^1$

素因数の和:4125

約数の個数: 32

約数和(自身を含む): 168846120

約数和(自身を除く): 93968000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 521, 1042, 2084, 2605, 3593, 4168, 5210, 7186, 10420, 14372, 17965, 20840, 28744, 35930, 71860, 143720, 1871953, 3743906, 7487812, 9359765, 14975624, 18719530, 37439060, 74878120]

約数ペア:

[(1, 74878120), (2, 37439060), (4, 18719530), (5, 14975624), (8, 9359765), (10, 7487812), (20, 3743906), (40, 1871953), (521, 143720), (1042, 71860), (2084, 35930), (2605, 28744), (3593, 20840), (4168, 17965), (5210, 14372), (7186, 10420)]