71938780

素因数分解:

$2^2\times 5^1\times {\mathrm{449}}^1\times {\mathrm{8011}}^1$

素因数の和:8469

約数の個数: 24

約数和(自身を含む): 151426800

約数和(自身を除く): 79488020

約数列:

[1, 2, 4, 5, 10, 20, 449, 898, 1796, 2245, 4490, 8011, 8980, 16022, 32044, 40055, 80110, 160220, 3596939, 7193878, 14387756, 17984695, 35969390, 71938780]

約数ペア:

[(1, 71938780), (2, 35969390), (4, 17984695), (5, 14387756), (10, 7193878), (20, 3596939), (449, 160220), (898, 80110), (1796, 40055), (2245, 32044), (4490, 16022), (8011, 8980)]