19924640

素因数分解:

$2^5\times 5^1\times {\mathrm{124529}}^1$

素因数の和:124544

約数の個数: 24

約数和(自身を含む): 47072340

約数和(自身を除く): 27147700

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 124529, 249058, 498116, 622645, 996232, 1245290, 1992464, 2490580, 3984928, 4981160, 9962320, 19924640]

約数ペア:

[(1, 19924640), (2, 9962320), (4, 4981160), (5, 3984928), (8, 2490580), (10, 1992464), (16, 1245290), (20, 996232), (32, 622645), (40, 498116), (80, 249058), (160, 124529)]