20037980

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{21317}}^1$

素因数の和:21373

約数の個数: 24

約数和(自身を含む): 42977088

約数和(自身を除く): 22939108

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940, 21317, 42634, 85268, 106585, 213170, 426340, 1001899, 2003798, 4007596, 5009495, 10018990, 20037980]

約数ペア:

[(1, 20037980), (2, 10018990), (4, 5009495), (5, 4007596), (10, 2003798), (20, 1001899), (47, 426340), (94, 213170), (188, 106585), (235, 85268), (470, 42634), (940, 21317)]