15820145

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{79}}^1\times {\mathrm{331}}^1$

素因数の和:437

約数の個数: 24

約数和(自身を含む): 21194880

約数和(自身を除く): 5374735

約数列:

[1, 5, 11, 55, 79, 121, 331, 395, 605, 869, 1655, 3641, 4345, 9559, 18205, 26149, 40051, 47795, 130745, 200255, 287639, 1438195, 3164029, 15820145]

約数ペア:

[(1, 15820145), (5, 3164029), (11, 1438195), (55, 287639), (79, 200255), (121, 130745), (331, 47795), (395, 40051), (605, 26149), (869, 18205), (1655, 9559), (3641, 4345)]