20157458545

素因数分解:

$5^1\times 7^2\times {\mathrm{787}}^1\times {\mathrm{104543}}^1$

素因数の和:105349

約数の個数: 24

約数和(自身を含む): 28174189824

約数和(自身を除く): 8016731279

約数列:

[1, 5, 7, 35, 49, 245, 787, 3935, 5509, 27545, 38563, 104543, 192815, 522715, 731801, 3659005, 5122607, 25613035, 82275341, 411376705, 575927387, 2879636935, 4031491709, 20157458545]

約数ペア:

[(1, 20157458545), (5, 4031491709), (7, 2879636935), (35, 575927387), (49, 411376705), (245, 82275341), (787, 25613035), (3935, 5122607), (5509, 3659005), (27545, 731801), (38563, 522715), (104543, 192815)]