66990125

素因数分解:

$5^3\times {\mathrm{131}}^1\times {\mathrm{4091}}^1$

素因数の和:4237

約数の個数: 16

約数和(自身を含む): 84262464

約数和(自身を除く): 17272339

約数列:

[1, 5, 25, 125, 131, 655, 3275, 4091, 16375, 20455, 102275, 511375, 535921, 2679605, 13398025, 66990125]

約数ペア:

[(1, 66990125), (5, 13398025), (25, 2679605), (125, 535921), (131, 511375), (655, 102275), (3275, 20455), (4091, 16375)]