20857740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{347629}}^1$

素因数の和:347641

約数の個数: 24

約数和(自身を含む): 58401840

約数和(自身を除く): 37544100

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 347629, 695258, 1042887, 1390516, 1738145, 2085774, 3476290, 4171548, 5214435, 6952580, 10428870, 20857740]

約数ペア:

[(1, 20857740), (2, 10428870), (3, 6952580), (4, 5214435), (5, 4171548), (6, 3476290), (10, 2085774), (12, 1738145), (15, 1390516), (20, 1042887), (30, 695258), (60, 347629)]