20680520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{73859}}^1$

素因数の和:73877

約数の個数: 32

約数和(自身を含む): 53179200

約数和(自身を除く): 32498680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 73859, 147718, 295436, 369295, 517013, 590872, 738590, 1034026, 1477180, 2068052, 2585065, 2954360, 4136104, 5170130, 10340260, 20680520]

約数ペア:

[(1, 20680520), (2, 10340260), (4, 5170130), (5, 4136104), (7, 2954360), (8, 2585065), (10, 2068052), (14, 1477180), (20, 1034026), (28, 738590), (35, 590872), (40, 517013), (56, 369295), (70, 295436), (140, 147718), (280, 73859)]