20406988805

素因数分解:

$5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{163367}}^1$

素因数の和:163505

約数の個数: 32

約数和(自身を含む): 28982790144

約数和(自身を除く): 8575801339

約数列:

[1, 5, 7, 35, 43, 83, 215, 301, 415, 581, 1505, 2905, 3569, 17845, 24983, 124915, 163367, 816835, 1143569, 5717845, 7024781, 13559461, 35123905, 49173467, 67797305, 94916227, 245867335, 474581135, 583056823, 2915284115, 4081397761, 20406988805]

約数ペア:

[(1, 20406988805), (5, 4081397761), (7, 2915284115), (35, 583056823), (43, 474581135), (83, 245867335), (215, 94916227), (301, 67797305), (415, 49173467), (581, 35123905), (1505, 13559461), (2905, 7024781), (3569, 5717845), (17845, 1143569), (24983, 816835), (124915, 163367)]