64909655

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{20639}}^1$

素因数の和:20698

約数の個数: 16

約数和(自身を含む): 84706560

約数和(自身を除く): 19796905

約数列:

[1, 5, 17, 37, 85, 185, 629, 3145, 20639, 103195, 350863, 763643, 1754315, 3818215, 12981931, 64909655]

約数ペア:

[(1, 64909655), (5, 12981931), (17, 3818215), (37, 1754315), (85, 763643), (185, 350863), (629, 103195), (3145, 20639)]