212015740

素因数分解:

$2^2\times 5^1\times {\mathrm{521}}^1\times {\mathrm{20347}}^1$

素因数の和:20877

約数の個数: 24

約数和(自身を含む): 446109552

約数和(自身を除く): 234093812

約数列:

[1, 2, 4, 5, 10, 20, 521, 1042, 2084, 2605, 5210, 10420, 20347, 40694, 81388, 101735, 203470, 406940, 10600787, 21201574, 42403148, 53003935, 106007870, 212015740]

約数ペア:

[(1, 212015740), (2, 106007870), (4, 53003935), (5, 42403148), (10, 21201574), (20, 10600787), (521, 406940), (1042, 203470), (2084, 101735), (2605, 81388), (5210, 40694), (10420, 20347)]