129124540

素因数分解:

$2^2\times 5^1\times {\mathrm{1531}}^1\times {\mathrm{4217}}^1$

素因数の和:5757

約数の個数: 24

約数和(自身を含む): 271402992

約数和(自身を除く): 142278452

約数列:

[1, 2, 4, 5, 10, 20, 1531, 3062, 4217, 6124, 7655, 8434, 15310, 16868, 21085, 30620, 42170, 84340, 6456227, 12912454, 25824908, 32281135, 64562270, 129124540]

約数ペア:

[(1, 129124540), (2, 64562270), (4, 32281135), (5, 25824908), (10, 12912454), (20, 6456227), (1531, 84340), (3062, 42170), (4217, 30620), (6124, 21085), (7655, 16868), (8434, 15310)]