204413680

素因数分解:

$2^4\times 5^1\times {\mathrm{2555171}}^1$

素因数の和:2555184

約数の個数: 20

約数和(自身を含む): 475261992

約数和(自身を除く): 270848312

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2555171, 5110342, 10220684, 12775855, 20441368, 25551710, 40882736, 51103420, 102206840, 204413680]

約数ペア:

[(1, 204413680), (2, 102206840), (4, 51103420), (5, 40882736), (8, 25551710), (10, 20441368), (16, 12775855), (20, 10220684), (40, 5110342), (80, 2555171)]