779968220

素因数分解:

$2^2\times 5^1\times {\mathrm{1789}}^1\times {\mathrm{21799}}^1$

素因数の和:23597

約数の個数: 24

約数和(自身を含む): 1638924000

約数和(自身を除く): 858955780

約数列:

[1, 2, 4, 5, 10, 20, 1789, 3578, 7156, 8945, 17890, 21799, 35780, 43598, 87196, 108995, 217990, 435980, 38998411, 77996822, 155993644, 194992055, 389984110, 779968220]

約数ペア:

[(1, 779968220), (2, 389984110), (4, 194992055), (5, 155993644), (10, 77996822), (20, 38998411), (1789, 435980), (3578, 217990), (7156, 108995), (8945, 87196), (17890, 43598), (21799, 35780)]