318333640

素因数分解:

$2^3\times 5^1\times {\mathrm{757}}^1\times {\mathrm{10513}}^1$

素因数の和:11281

約数の個数: 32

約数和(自身を含む): 717265080

約数和(自身を除く): 398931440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 757, 1514, 3028, 3785, 6056, 7570, 10513, 15140, 21026, 30280, 42052, 52565, 84104, 105130, 210260, 420520, 7958341, 15916682, 31833364, 39791705, 63666728, 79583410, 159166820, 318333640]

約数ペア:

[(1, 318333640), (2, 159166820), (4, 79583410), (5, 63666728), (8, 39791705), (10, 31833364), (20, 15916682), (40, 7958341), (757, 420520), (1514, 210260), (3028, 105130), (3785, 84104), (6056, 52565), (7570, 42052), (10513, 30280), (15140, 21026)]