1339325

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{317}}^1$

素因数の和:353

約数の個数: 18

約数和(自身を含む): 1804014

約数和(自身を除く): 464689

約数列:

[1, 5, 13, 25, 65, 169, 317, 325, 845, 1585, 4121, 4225, 7925, 20605, 53573, 103025, 267865, 1339325]

約数ペア:

[(1, 1339325), (5, 267865), (13, 103025), (25, 53573), (65, 20605), (169, 7925), (317, 4225), (325, 4121), (845, 1585)]