9971560

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{2801}}^1$

素因数の和:2901

約数の個数: 32

約数和(自身を含む): 22696200

約数和(自身を除く): 12724640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 2801, 3560, 5602, 11204, 14005, 22408, 28010, 56020, 112040, 249289, 498578, 997156, 1246445, 1994312, 2492890, 4985780, 9971560]

約数ペア:

[(1, 9971560), (2, 4985780), (4, 2492890), (5, 1994312), (8, 1246445), (10, 997156), (20, 498578), (40, 249289), (89, 112040), (178, 56020), (356, 28010), (445, 22408), (712, 14005), (890, 11204), (1780, 5602), (2801, 3560)]