3880900

素因数分解:

$2^2\times 5^2\times {\mathrm{197}}^2$

素因数の和:408

約数の個数: 27

約数和(自身を含む): 8464519

約数和(自身を除く): 4583619

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 197, 394, 788, 985, 1970, 3940, 4925, 9850, 19700, 38809, 77618, 155236, 194045, 388090, 776180, 970225, 1940450, 3880900]

約数ペア:

[(1, 3880900), (2, 1940450), (4, 970225), (5, 776180), (10, 388090), (20, 194045), (25, 155236), (50, 77618), (100, 38809), (197, 19700), (394, 9850), (788, 4925), (985, 3940)]