28878560

素因数分解:

$2^5\times 5^1\times {\mathrm{180491}}^1$

素因数の和:180506

約数の個数: 24

約数和(自身を含む): 68225976

約数和(自身を除く): 39347416

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 180491, 360982, 721964, 902455, 1443928, 1804910, 2887856, 3609820, 5775712, 7219640, 14439280, 28878560]

約数ペア:

[(1, 28878560), (2, 14439280), (4, 7219640), (5, 5775712), (8, 3609820), (10, 2887856), (16, 1804910), (20, 1443928), (32, 902455), (40, 721964), (80, 360982), (160, 180491)]