20199451180

素因数分解:

$2^2\times 5^1\times {\mathrm{7129}}^1\times {\mathrm{141671}}^1$

素因数の和:148809

約数の個数: 24

約数和(自身を含む): 42425097120

約数和(自身を除く): 22225645940

約数列:

[1, 2, 4, 5, 10, 20, 7129, 14258, 28516, 35645, 71290, 141671, 142580, 283342, 566684, 708355, 1416710, 2833420, 1009972559, 2019945118, 4039890236, 5049862795, 10099725590, 20199451180]

約数ペア:

[(1, 20199451180), (2, 10099725590), (4, 5049862795), (5, 4039890236), (10, 2019945118), (20, 1009972559), (7129, 2833420), (14258, 1416710), (28516, 708355), (35645, 566684), (71290, 283342), (141671, 142580)]