56707480

素因数分解:

$2^3\times 5^1\times {\mathrm{397}}^1\times {\mathrm{3571}}^1$

素因数の和:3979

約数の個数: 32

約数和(自身を含む): 127949040

約数和(自身を除く): 71241560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 397, 794, 1588, 1985, 3176, 3571, 3970, 7142, 7940, 14284, 15880, 17855, 28568, 35710, 71420, 142840, 1417687, 2835374, 5670748, 7088435, 11341496, 14176870, 28353740, 56707480]

約数ペア:

[(1, 56707480), (2, 28353740), (4, 14176870), (5, 11341496), (8, 7088435), (10, 5670748), (20, 2835374), (40, 1417687), (397, 142840), (794, 71420), (1588, 35710), (1985, 28568), (3176, 17855), (3571, 15880), (3970, 14284), (7142, 7940)]