20165212825

素因数分解:

$5^2\times {\mathrm{89}}^1\times {\mathrm{2137}}^1\times {\mathrm{4241}}^1$

素因数の和:6477

約数の個数: 24

約数和(自身を含む): 25303614840

約数和(自身を除く): 5138402015

約数列:

[1, 5, 25, 89, 445, 2137, 2225, 4241, 10685, 21205, 53425, 106025, 190193, 377449, 950965, 1887245, 4754825, 9063017, 9436225, 45315085, 226575425, 806608513, 4033042565, 20165212825]

約数ペア:

[(1, 20165212825), (5, 4033042565), (25, 806608513), (89, 226575425), (445, 45315085), (2137, 9436225), (2225, 9063017), (4241, 4754825), (10685, 1887245), (21205, 950965), (53425, 377449), (106025, 190193)]