81126775

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{149}}^1\times {\mathrm{751}}^1$

素因数の和:939

約数の個数: 24

約数和(自身を含む): 104904000

約数和(自身を除く): 23777225

約数列:

[1, 5, 25, 29, 145, 149, 725, 745, 751, 3725, 3755, 4321, 18775, 21605, 21779, 108025, 108895, 111899, 544475, 559495, 2797475, 3245071, 16225355, 81126775]

約数ペア:

[(1, 81126775), (5, 16225355), (25, 3245071), (29, 2797475), (145, 559495), (149, 544475), (725, 111899), (745, 108895), (751, 108025), (3725, 21779), (3755, 21605), (4321, 18775)]