20191628180

素因数分解:

$2^2\times 5^1\times {\mathrm{1481}}^1\times {\mathrm{681689}}^1$

素因数の和:683179

約数の個数: 24

約数和(自身を含む): 42431112360

約数和(自身を除く): 22239484180

約数列:

[1, 2, 4, 5, 10, 20, 1481, 2962, 5924, 7405, 14810, 29620, 681689, 1363378, 2726756, 3408445, 6816890, 13633780, 1009581409, 2019162818, 4038325636, 5047907045, 10095814090, 20191628180]

約数ペア:

[(1, 20191628180), (2, 10095814090), (4, 5047907045), (5, 4038325636), (10, 2019162818), (20, 1009581409), (1481, 13633780), (2962, 6816890), (5924, 3408445), (7405, 2726756), (14810, 1363378), (29620, 681689)]