660883975

素因数分解:

$5^2\times {\mathrm{71}}^1\times {\mathrm{199}}^1\times {\mathrm{1871}}^1$

素因数の和:2151

約数の個数: 24

約数和(自身を含む): 835660800

約数和(自身を除く): 174776825

約数列:

[1, 5, 25, 71, 199, 355, 995, 1775, 1871, 4975, 9355, 14129, 46775, 70645, 132841, 353225, 372329, 664205, 1861645, 3321025, 9308225, 26435359, 132176795, 660883975]

約数ペア:

[(1, 660883975), (5, 132176795), (25, 26435359), (71, 9308225), (199, 3321025), (355, 1861645), (995, 664205), (1775, 372329), (1871, 353225), (4975, 132841), (9355, 70645), (14129, 46775)]