19505440

素因数分解:

$2^5\times 5^1\times {\mathrm{121909}}^1$

素因数の和:121924

約数の個数: 24

約数和(自身を含む): 46081980

約数和(自身を除く): 26576540

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 121909, 243818, 487636, 609545, 975272, 1219090, 1950544, 2438180, 3901088, 4876360, 9752720, 19505440]

約数ペア:

[(1, 19505440), (2, 9752720), (4, 4876360), (5, 3901088), (8, 2438180), (10, 1950544), (16, 1219090), (20, 975272), (32, 609545), (40, 487636), (80, 243818), (160, 121909)]