80992225

素因数分解:

$5^2\times {\mathrm{89}}^2\times {\mathrm{409}}^1$

素因数の和:597

約数の個数: 18

約数和(自身を含む): 101819810

約数和(自身を除く): 20827585

約数列:

[1, 5, 25, 89, 409, 445, 2045, 2225, 7921, 10225, 36401, 39605, 182005, 198025, 910025, 3239689, 16198445, 80992225]

約数ペア:

[(1, 80992225), (5, 16198445), (25, 3239689), (89, 910025), (409, 198025), (445, 182005), (2045, 39605), (2225, 36401), (7921, 10225)]