661270450

素因数分解:

$2^1\times 5^2\times {\mathrm{13225409}}^1$

素因数の和:13225421

約数の個数: 12

約数和(自身を含む): 1229963130

約数和(自身を除く): 568692680

約数列:

[1, 2, 5, 10, 25, 50, 13225409, 26450818, 66127045, 132254090, 330635225, 661270450]

約数ペア:

[(1, 661270450), (2, 330635225), (5, 132254090), (10, 66127045), (25, 26450818), (50, 13225409)]