90082780

素因数分解:

$2^2\times 5^1\times {\mathrm{1949}}^1\times {\mathrm{2311}}^1$

素因数の和:4269

約数の個数: 24

約数和(自身を含む): 189352800

約数和(自身を除く): 99270020

約数列:

[1, 2, 4, 5, 10, 20, 1949, 2311, 3898, 4622, 7796, 9244, 9745, 11555, 19490, 23110, 38980, 46220, 4504139, 9008278, 18016556, 22520695, 45041390, 90082780]

約数ペア:

[(1, 90082780), (2, 45041390), (4, 22520695), (5, 18016556), (10, 9008278), (20, 4504139), (1949, 46220), (2311, 38980), (3898, 23110), (4622, 19490), (7796, 11555), (9244, 9745)]