256201760

素因数分解:

$2^5\times 5^1\times {\mathrm{1601261}}^1$

素因数の和:1601276

約数の個数: 24

約数和(自身を含む): 605277036

約数和(自身を除く): 349075276

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 1601261, 3202522, 6405044, 8006305, 12810088, 16012610, 25620176, 32025220, 51240352, 64050440, 128100880, 256201760]

約数ペア:

[(1, 256201760), (2, 128100880), (4, 64050440), (5, 51240352), (8, 32025220), (10, 25620176), (16, 16012610), (20, 12810088), (32, 8006305), (40, 6405044), (80, 3202522), (160, 1601261)]