164039905

素因数分解:

$5^1\times {\mathrm{89}}^1\times {\mathrm{449}}^1\times {\mathrm{821}}^1$

素因数の和:1364

約数の個数: 16

約数和(自身を含む): 199746000

約数和(自身を除く): 35706095

約数列:

[1, 5, 89, 445, 449, 821, 2245, 4105, 39961, 73069, 199805, 365345, 368629, 1843145, 32807981, 164039905]

約数ペア:

[(1, 164039905), (5, 32807981), (89, 1843145), (445, 368629), (449, 365345), (821, 199805), (2245, 73069), (4105, 39961)]