64995640

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{19577}}^1$

素因数の和:19671

約数の個数: 32

約数和(自身を含む): 148009680

約数和(自身を除く): 83014040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 166, 332, 415, 664, 830, 1660, 3320, 19577, 39154, 78308, 97885, 156616, 195770, 391540, 783080, 1624891, 3249782, 6499564, 8124455, 12999128, 16248910, 32497820, 64995640]

約数ペア:

[(1, 64995640), (2, 32497820), (4, 16248910), (5, 12999128), (8, 8124455), (10, 6499564), (20, 3249782), (40, 1624891), (83, 783080), (166, 391540), (332, 195770), (415, 156616), (664, 97885), (830, 78308), (1660, 39154), (3320, 19577)]