20790940

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{54713}}^1$

素因数の和:54741

約数の個数: 24

約数和(自身を含む): 45959760

約数和(自身を除く): 25168820

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 54713, 109426, 218852, 273565, 547130, 1039547, 1094260, 2079094, 4158188, 5197735, 10395470, 20790940]

約数ペア:

[(1, 20790940), (2, 10395470), (4, 5197735), (5, 4158188), (10, 2079094), (19, 1094260), (20, 1039547), (38, 547130), (76, 273565), (95, 218852), (190, 109426), (380, 54713)]