88820080

素因数分解:

$2^4\times 5^1\times {\mathrm{521}}^1\times {\mathrm{2131}}^1$

素因数の和:2665

約数の個数: 40

約数和(自身を含む): 207000144

約数和(自身を除く): 118180064

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 521, 1042, 2084, 2131, 2605, 4168, 4262, 5210, 8336, 8524, 10420, 10655, 17048, 20840, 21310, 34096, 41680, 42620, 85240, 170480, 1110251, 2220502, 4441004, 5551255, 8882008, 11102510, 17764016, 22205020, 44410040, 88820080]

約数ペア:

[(1, 88820080), (2, 44410040), (4, 22205020), (5, 17764016), (8, 11102510), (10, 8882008), (16, 5551255), (20, 4441004), (40, 2220502), (80, 1110251), (521, 170480), (1042, 85240), (2084, 42620), (2131, 41680), (2605, 34096), (4168, 21310), (4262, 20840), (5210, 17048), (8336, 10655), (8524, 10420)]