408076825

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{353}}^1\times {\mathrm{3557}}^1$

素因数の和:3933

約数の個数: 24

約数和(自身を含む): 546636888

約数和(自身を除く): 138560063

約数列:

[1, 5, 13, 25, 65, 325, 353, 1765, 3557, 4589, 8825, 17785, 22945, 46241, 88925, 114725, 231205, 1156025, 1255621, 6278105, 16323073, 31390525, 81615365, 408076825]

約数ペア:

[(1, 408076825), (5, 81615365), (13, 31390525), (25, 16323073), (65, 6278105), (325, 1255621), (353, 1156025), (1765, 231205), (3557, 114725), (4589, 88925), (8825, 46241), (17785, 22945)]