87138680

素因数分解:

$2^3\times 5^1\times {\mathrm{2178467}}^1$

素因数の和:2178478

約数の個数: 16

約数和(自身を含む): 196062120

約数和(自身を除く): 108923440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2178467, 4356934, 8713868, 10892335, 17427736, 21784670, 43569340, 87138680]

約数ペア:

[(1, 87138680), (2, 43569340), (4, 21784670), (5, 17427736), (8, 10892335), (10, 8713868), (20, 4356934), (40, 2178467)]