87705880

素因数分解:

$2^3\times 5^1\times {\mathrm{1283}}^1\times {\mathrm{1709}}^1$

素因数の和:3003

約数の個数: 32

約数和(自身を含む): 197607600

約数和(自身を除く): 109901720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1283, 1709, 2566, 3418, 5132, 6415, 6836, 8545, 10264, 12830, 13672, 17090, 25660, 34180, 51320, 68360, 2192647, 4385294, 8770588, 10963235, 17541176, 21926470, 43852940, 87705880]

約数ペア:

[(1, 87705880), (2, 43852940), (4, 21926470), (5, 17541176), (8, 10963235), (10, 8770588), (20, 4385294), (40, 2192647), (1283, 68360), (1709, 51320), (2566, 34180), (3418, 25660), (5132, 17090), (6415, 13672), (6836, 12830), (8545, 10264)]