20899687580

素因数分解:

$2^2\times 5^1\times {\mathrm{1499}}^1\times {\mathrm{697121}}^1$

素因数の和:698629

約数の個数: 24

約数和(自身を含む): 43918686000

約数和(自身を除く): 23018998420

約数列:

[1, 2, 4, 5, 10, 20, 1499, 2998, 5996, 7495, 14990, 29980, 697121, 1394242, 2788484, 3485605, 6971210, 13942420, 1044984379, 2089968758, 4179937516, 5224921895, 10449843790, 20899687580]

約数ペア:

[(1, 20899687580), (2, 10449843790), (4, 5224921895), (5, 4179937516), (10, 2089968758), (20, 1044984379), (1499, 13942420), (2998, 6971210), (5996, 3485605), (7495, 2788484), (14990, 1394242), (29980, 697121)]