12520145

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{11981}}^1$

素因数の和:12016

約数の個数: 16

約数和(自身を含む): 17254080

約数和(自身を除く): 4733935

約数列:

[1, 5, 11, 19, 55, 95, 209, 1045, 11981, 59905, 131791, 227639, 658955, 1138195, 2504029, 12520145]

約数ペア:

[(1, 12520145), (5, 2504029), (11, 1138195), (19, 658955), (55, 227639), (95, 131791), (209, 59905), (1045, 11981)]