57243640

素因数分解:

$2^3\times 5^1\times {\mathrm{409}}^1\times {\mathrm{3499}}^1$

素因数の和:3919

約数の個数: 32

約数和(自身を含む): 129150000

約数和(自身を除く): 71906360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 409, 818, 1636, 2045, 3272, 3499, 4090, 6998, 8180, 13996, 16360, 17495, 27992, 34990, 69980, 139960, 1431091, 2862182, 5724364, 7155455, 11448728, 14310910, 28621820, 57243640]

約数ペア:

[(1, 57243640), (2, 28621820), (4, 14310910), (5, 11448728), (8, 7155455), (10, 5724364), (20, 2862182), (40, 1431091), (409, 139960), (818, 69980), (1636, 34990), (2045, 27992), (3272, 17495), (3499, 16360), (4090, 13996), (6998, 8180)]