20196575

素因数分解:

$5^2\times 7^2\times {\mathrm{16487}}^1$

素因数の和:16511

約数の個数: 18

約数和(自身を含む): 29134296

約数和(自身を除く): 8937721

約数列:

[1, 5, 7, 25, 35, 49, 175, 245, 1225, 16487, 82435, 115409, 412175, 577045, 807863, 2885225, 4039315, 20196575]

約数ペア:

[(1, 20196575), (5, 4039315), (7, 2885225), (25, 807863), (35, 577045), (49, 412175), (175, 115409), (245, 82435), (1225, 16487)]