56819960

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{17981}}^1$

素因数の和:18071

約数の個数: 32

約数和(自身を含む): 129470400

約数和(自身を除く): 72650440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 17981, 35962, 71924, 89905, 143848, 179810, 359620, 719240, 1420499, 2840998, 5681996, 7102495, 11363992, 14204990, 28409980, 56819960]

約数ペア:

[(1, 56819960), (2, 28409980), (4, 14204990), (5, 11363992), (8, 7102495), (10, 5681996), (20, 2840998), (40, 1420499), (79, 719240), (158, 359620), (316, 179810), (395, 143848), (632, 89905), (790, 71924), (1580, 35962), (3160, 17981)]