38409820

素因数分解:

$2^2\times 5^1\times {\mathrm{179}}^1\times {\mathrm{10729}}^1$

素因数の和:10917

約数の個数: 24

約数和(自身を含む): 81118800

約数和(自身を除く): 42708980

約数列:

[1, 2, 4, 5, 10, 20, 179, 358, 716, 895, 1790, 3580, 10729, 21458, 42916, 53645, 107290, 214580, 1920491, 3840982, 7681964, 9602455, 19204910, 38409820]

約数ペア:

[(1, 38409820), (2, 19204910), (4, 9602455), (5, 7681964), (10, 3840982), (20, 1920491), (179, 214580), (358, 107290), (716, 53645), (895, 42916), (1790, 21458), (3580, 10729)]