20171980

素因数分解:

$2^2\times 5^1\times {\mathrm{457}}^1\times {\mathrm{2207}}^1$

素因数の和:2673

約数の個数: 24

約数和(自身を含む): 42473088

約数和(自身を除く): 22301108

約数列:

[1, 2, 4, 5, 10, 20, 457, 914, 1828, 2207, 2285, 4414, 4570, 8828, 9140, 11035, 22070, 44140, 1008599, 2017198, 4034396, 5042995, 10085990, 20171980]

約数ペア:

[(1, 20171980), (2, 10085990), (4, 5042995), (5, 4034396), (10, 2017198), (20, 1008599), (457, 44140), (914, 22070), (1828, 11035), (2207, 9140), (2285, 8828), (4414, 4570)]