20105980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{32429}}^1$

素因数の和:32469

約数の個数: 24

約数和(自身を含む): 43585920

約数和(自身を除く): 23479940

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 32429, 64858, 129716, 162145, 324290, 648580, 1005299, 2010598, 4021196, 5026495, 10052990, 20105980]

約数ペア:

[(1, 20105980), (2, 10052990), (4, 5026495), (5, 4021196), (10, 2010598), (20, 1005299), (31, 648580), (62, 324290), (124, 162145), (155, 129716), (310, 64858), (620, 32429)]