19664450

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{30253}}^1$

素因数の和:30278

約数の個数: 24

約数和(自身を含む): 39390708

約数和(自身を除く): 19726258

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 650, 30253, 60506, 151265, 302530, 393289, 756325, 786578, 1512650, 1966445, 3932890, 9832225, 19664450]

約数ペア:

[(1, 19664450), (2, 9832225), (5, 3932890), (10, 1966445), (13, 1512650), (25, 786578), (26, 756325), (50, 393289), (65, 302530), (130, 151265), (325, 60506), (650, 30253)]