19804900

素因数分解:

$2^2\times 5^2\times {\mathrm{73}}^1\times {\mathrm{2713}}^1$

素因数の和:2800

約数の個数: 36

約数和(自身を含む): 43581412

約数和(自身を除く): 23776512

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 73, 100, 146, 292, 365, 730, 1460, 1825, 2713, 3650, 5426, 7300, 10852, 13565, 27130, 54260, 67825, 135650, 198049, 271300, 396098, 792196, 990245, 1980490, 3960980, 4951225, 9902450, 19804900]

約数ペア:

[(1, 19804900), (2, 9902450), (4, 4951225), (5, 3960980), (10, 1980490), (20, 990245), (25, 792196), (50, 396098), (73, 271300), (100, 198049), (146, 135650), (292, 67825), (365, 54260), (730, 27130), (1460, 13565), (1825, 10852), (2713, 7300), (3650, 5426)]