87831875

素因数分解:

$5^4\times {\mathrm{89}}^1\times {\mathrm{1579}}^1$

素因数の和:1688

約数の個数: 20

約数和(自身を含む): 111058200

約数和(自身を除く): 23226325

約数列:

[1, 5, 25, 89, 125, 445, 625, 1579, 2225, 7895, 11125, 39475, 55625, 140531, 197375, 702655, 986875, 3513275, 17566375, 87831875]

約数ペア:

[(1, 87831875), (5, 17566375), (25, 3513275), (89, 986875), (125, 702655), (445, 197375), (625, 140531), (1579, 55625), (2225, 39475), (7895, 11125)]