86990125

素因数分解:

$5^3\times {\mathrm{389}}^1\times {\mathrm{1789}}^1$

素因数の和:2193

約数の個数: 16

約数和(自身を含む): 108903600

約数和(自身を除く): 21913475

約数列:

[1, 5, 25, 125, 389, 1789, 1945, 8945, 9725, 44725, 48625, 223625, 695921, 3479605, 17398025, 86990125]

約数ペア:

[(1, 86990125), (5, 17398025), (25, 3479605), (125, 695921), (389, 223625), (1789, 48625), (1945, 44725), (8945, 9725)]