260451920

素因数分解:

$2^4\times 5^1\times {\mathrm{3255649}}^1$

素因数の和:3255662

約数の個数: 20

約数和(自身を含む): 605550900

約数和(自身を除く): 345098980

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3255649, 6511298, 13022596, 16278245, 26045192, 32556490, 52090384, 65112980, 130225960, 260451920]

約数ペア:

[(1, 260451920), (2, 130225960), (4, 65112980), (5, 52090384), (8, 32556490), (10, 26045192), (16, 16278245), (20, 13022596), (40, 6511298), (80, 3255649)]