90103870

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1\times {\mathrm{1979}}^1$

素因数の和:2172

約数の個数: 32

約数和(自身を含む): 168933600

約数和(自身を除く): 78829730

約数列:

[1, 2, 5, 10, 29, 58, 145, 157, 290, 314, 785, 1570, 1979, 3958, 4553, 9106, 9895, 19790, 22765, 45530, 57391, 114782, 286955, 310703, 573910, 621406, 1553515, 3107030, 9010387, 18020774, 45051935, 90103870]

約数ペア:

[(1, 90103870), (2, 45051935), (5, 18020774), (10, 9010387), (29, 3107030), (58, 1553515), (145, 621406), (157, 573910), (290, 310703), (314, 286955), (785, 114782), (1570, 57391), (1979, 45530), (3958, 22765), (4553, 19790), (9106, 9895)]