28118680

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41351}}^1$

素因数の和:41379

約数の個数: 32

約数和(自身を含む): 66990240

約数和(自身を除く): 38871560

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 41351, 82702, 165404, 206755, 330808, 413510, 702967, 827020, 1405934, 1654040, 2811868, 3514835, 5623736, 7029670, 14059340, 28118680]

約数ペア:

[(1, 28118680), (2, 14059340), (4, 7029670), (5, 5623736), (8, 3514835), (10, 2811868), (17, 1654040), (20, 1405934), (34, 827020), (40, 702967), (68, 413510), (85, 330808), (136, 206755), (170, 165404), (340, 82702), (680, 41351)]