90109100

素因数分解:

$2^2\times 5^2\times {\mathrm{859}}^1\times {\mathrm{1049}}^1$

素因数の和:1922

約数の個数: 36

約数和(自身を含む): 195951000

約数和(自身を除く): 105841900

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 859, 1049, 1718, 2098, 3436, 4196, 4295, 5245, 8590, 10490, 17180, 20980, 21475, 26225, 42950, 52450, 85900, 104900, 901091, 1802182, 3604364, 4505455, 9010910, 18021820, 22527275, 45054550, 90109100]

約数ペア:

[(1, 90109100), (2, 45054550), (4, 22527275), (5, 18021820), (10, 9010910), (20, 4505455), (25, 3604364), (50, 1802182), (100, 901091), (859, 104900), (1049, 85900), (1718, 52450), (2098, 42950), (3436, 26225), (4196, 21475), (4295, 20980), (5245, 17180), (8590, 10490)]