20153740

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{6763}}^1$

素因数の和:6921

約数の個数: 24

約数和(自身を含む): 42613200

約数和(自身を除く): 22459460

約数列:

[1, 2, 4, 5, 10, 20, 149, 298, 596, 745, 1490, 2980, 6763, 13526, 27052, 33815, 67630, 135260, 1007687, 2015374, 4030748, 5038435, 10076870, 20153740]

約数ペア:

[(1, 20153740), (2, 10076870), (4, 5038435), (5, 4030748), (10, 2015374), (20, 1007687), (149, 135260), (298, 67630), (596, 33815), (745, 27052), (1490, 13526), (2980, 6763)]