80521775875

素因数分解:

$5^3\times {\mathrm{163}}^1\times {\mathrm{3951989}}^1$

素因数の和:3952167

約数の個数: 16

約数和(自身を含む): 101107712160

約数和(自身を除く): 20585936285

約数列:

[1, 5, 25, 125, 163, 815, 4075, 20375, 3951989, 19759945, 98799725, 493998625, 644174207, 3220871035, 16104355175, 80521775875]

約数ペア:

[(1, 80521775875), (5, 16104355175), (25, 3220871035), (125, 644174207), (163, 493998625), (815, 98799725), (4075, 19759945), (20375, 3951989)]