11138980

素因数分解:

$2^2\times 5^1\times {\mathrm{521}}^1\times {\mathrm{1069}}^1$

素因数の和:1599

約数の個数: 24

約数和(自身を含む): 23458680

約数和(自身を除く): 12319700

約数列:

[1, 2, 4, 5, 10, 20, 521, 1042, 1069, 2084, 2138, 2605, 4276, 5210, 5345, 10420, 10690, 21380, 556949, 1113898, 2227796, 2784745, 5569490, 11138980]

約数ペア:

[(1, 11138980), (2, 5569490), (4, 2784745), (5, 2227796), (10, 1113898), (20, 556949), (521, 21380), (1042, 10690), (1069, 10420), (2084, 5345), (2138, 5210), (2605, 4276)]