69990125

素因数分解:

$5^3\times {\mathrm{37}}^2\times {\mathrm{409}}^1$

素因数の和:498

約数の個数: 24

約数和(自身を含む): 89991720

約数和(自身を除く): 20001595

約数列:

[1, 5, 25, 37, 125, 185, 409, 925, 1369, 2045, 4625, 6845, 10225, 15133, 34225, 51125, 75665, 171125, 378325, 559921, 1891625, 2799605, 13998025, 69990125]

約数ペア:

[(1, 69990125), (5, 13998025), (25, 2799605), (37, 1891625), (125, 559921), (185, 378325), (409, 171125), (925, 75665), (1369, 51125), (2045, 34225), (4625, 15133), (6845, 10225)]