161769725

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{409}}^1\times {\mathrm{1217}}^1$

素因数の和:1649

約数の個数: 24

約数和(自身を含む): 216730920

約数和(自身を除く): 54961195

約数列:

[1, 5, 13, 25, 65, 325, 409, 1217, 2045, 5317, 6085, 10225, 15821, 26585, 30425, 79105, 132925, 395525, 497753, 2488765, 6470789, 12443825, 32353945, 161769725]

約数ペア:

[(1, 161769725), (5, 32353945), (13, 12443825), (25, 6470789), (65, 2488765), (325, 497753), (409, 395525), (1217, 132925), (2045, 79105), (5317, 30425), (6085, 26585), (10225, 15821)]