201820180

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{137}}^1\times {\mathrm{1009}}^1$

素因数の和:1228

約数の個数: 48

約数和(自身を含む): 433193040

約数和(自身を除く): 231372860

約数列:

[1, 2, 4, 5, 10, 20, 73, 137, 146, 274, 292, 365, 548, 685, 730, 1009, 1370, 1460, 2018, 2740, 4036, 5045, 10001, 10090, 20002, 20180, 40004, 50005, 73657, 100010, 138233, 147314, 200020, 276466, 294628, 368285, 552932, 691165, 736570, 1382330, 1473140, 2764660, 10091009, 20182018, 40364036, 50455045, 100910090, 201820180]

約数ペア:

[(1, 201820180), (2, 100910090), (4, 50455045), (5, 40364036), (10, 20182018), (20, 10091009), (73, 2764660), (137, 1473140), (146, 1382330), (274, 736570), (292, 691165), (365, 552932), (548, 368285), (685, 294628), (730, 276466), (1009, 200020), (1370, 147314), (1460, 138233), (2018, 100010), (2740, 73657), (4036, 50005), (5045, 40004), (10001, 20180), (10090, 20002)]