855620

素因数分解:

$2^2\times 5^1\times {\mathrm{179}}^1\times {\mathrm{239}}^1$

素因数の和:427

約数の個数: 24

約数和(自身を含む): 1814400

約数和(自身を除く): 958780

約数列:

[1, 2, 4, 5, 10, 20, 179, 239, 358, 478, 716, 895, 956, 1195, 1790, 2390, 3580, 4780, 42781, 85562, 171124, 213905, 427810, 855620]

約数ペア:

[(1, 855620), (2, 427810), (4, 213905), (5, 171124), (10, 85562), (20, 42781), (179, 4780), (239, 3580), (358, 2390), (478, 1790), (716, 1195), (895, 956)]