204465440

素因数分解:

$2^5\times 5^1\times {\mathrm{1277909}}^1$

素因数の和:1277924

約数の個数: 24

約数和(自身を含む): 483049980

約数和(自身を除く): 278584540

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 1277909, 2555818, 5111636, 6389545, 10223272, 12779090, 20446544, 25558180, 40893088, 51116360, 102232720, 204465440]

約数ペア:

[(1, 204465440), (2, 102232720), (4, 51116360), (5, 40893088), (8, 25558180), (10, 20446544), (16, 12779090), (20, 10223272), (32, 6389545), (40, 5111636), (80, 2555818), (160, 1277909)]