20455912

素因数分解:

$2^3\times {\mathrm{131}}^2\times {\mathrm{149}}^1$

素因数の和:417

約数の個数: 24

約数和(自身を含む): 38909250

約数和(自身を除く): 18453338

約数列:

[1, 2, 4, 8, 131, 149, 262, 298, 524, 596, 1048, 1192, 17161, 19519, 34322, 39038, 68644, 78076, 137288, 156152, 2556989, 5113978, 10227956, 20455912]

約数ペア:

[(1, 20455912), (2, 10227956), (4, 5113978), (8, 2556989), (131, 156152), (149, 137288), (262, 78076), (298, 68644), (524, 39038), (596, 34322), (1048, 19519), (1192, 17161)]