89007640

素因数分解:

$2^3\times 5^1\times {\mathrm{521}}^1\times {\mathrm{4271}}^1$

素因数の和:4803

約数の個数: 32

約数和(自身を含む): 200698560

約数和(自身を除く): 111690920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 521, 1042, 2084, 2605, 4168, 4271, 5210, 8542, 10420, 17084, 20840, 21355, 34168, 42710, 85420, 170840, 2225191, 4450382, 8900764, 11125955, 17801528, 22251910, 44503820, 89007640]

約数ペア:

[(1, 89007640), (2, 44503820), (4, 22251910), (5, 17801528), (8, 11125955), (10, 8900764), (20, 4450382), (40, 2225191), (521, 170840), (1042, 85420), (2084, 42710), (2605, 34168), (4168, 21355), (4271, 20840), (5210, 17084), (8542, 10420)]