163398680

素因数分解:

$2^3\times 5^1\times {\mathrm{1471}}^1\times {\mathrm{2777}}^1$

素因数の和:4259

約数の個数: 32

約数和(自身を含む): 368029440

約数和(自身を除く): 204630760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1471, 2777, 2942, 5554, 5884, 7355, 11108, 11768, 13885, 14710, 22216, 27770, 29420, 55540, 58840, 111080, 4084967, 8169934, 16339868, 20424835, 32679736, 40849670, 81699340, 163398680]

約数ペア:

[(1, 163398680), (2, 81699340), (4, 40849670), (5, 32679736), (8, 20424835), (10, 16339868), (20, 8169934), (40, 4084967), (1471, 111080), (2777, 58840), (2942, 55540), (5554, 29420), (5884, 27770), (7355, 22216), (11108, 14710), (11768, 13885)]