164891615

素因数分解:

$5^1\times 7^2\times {\mathrm{163}}^1\times {\mathrm{4129}}^1$

素因数の和:4311

約数の個数: 24

約数和(自身を含む): 231643440

約数和(自身を除く): 66751825

約数列:

[1, 5, 7, 35, 49, 163, 245, 815, 1141, 4129, 5705, 7987, 20645, 28903, 39935, 144515, 202321, 673027, 1011605, 3365135, 4711189, 23555945, 32978323, 164891615]

約数ペア:

[(1, 164891615), (5, 32978323), (7, 23555945), (35, 4711189), (49, 3365135), (163, 1011605), (245, 673027), (815, 202321), (1141, 144515), (4129, 39935), (5705, 28903), (7987, 20645)]