20830355

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{2693}}^1$

素因数の和:2735

約数の個数: 32

約数和(自身を含む): 32586624

約数和(自身を除く): 11756269

約数列:

[1, 5, 7, 13, 17, 35, 65, 85, 91, 119, 221, 455, 595, 1105, 1547, 2693, 7735, 13465, 18851, 35009, 45781, 94255, 175045, 228905, 245063, 320467, 595153, 1225315, 1602335, 2975765, 4166071, 20830355]

約数ペア:

[(1, 20830355), (5, 4166071), (7, 2975765), (13, 1602335), (17, 1225315), (35, 595153), (65, 320467), (85, 245063), (91, 228905), (119, 175045), (221, 94255), (455, 45781), (595, 35009), (1105, 18851), (1547, 13465), (2693, 7735)]