87640625

素因数分解:

$5^6\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:180

約数の個数: 28

約数和(自身を含む): 112498560

約数和(自身を除く): 24857935

約数列:

[1, 5, 25, 71, 79, 125, 355, 395, 625, 1775, 1975, 3125, 5609, 8875, 9875, 15625, 28045, 44375, 49375, 140225, 221875, 246875, 701125, 1109375, 1234375, 3505625, 17528125, 87640625]

約数ペア:

[(1, 87640625), (5, 17528125), (25, 3505625), (71, 1234375), (79, 1109375), (125, 701125), (355, 246875), (395, 221875), (625, 140225), (1775, 49375), (1975, 44375), (3125, 28045), (5609, 15625), (8875, 9875)]