16868020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{64877}}^1$

素因数の和:64899

約数の個数: 24

約数和(自身を含む): 38148264

約数和(自身を除く): 21280244

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 64877, 129754, 259508, 324385, 648770, 843401, 1297540, 1686802, 3373604, 4217005, 8434010, 16868020]

約数ペア:

[(1, 16868020), (2, 8434010), (4, 4217005), (5, 3373604), (10, 1686802), (13, 1297540), (20, 843401), (26, 648770), (52, 324385), (65, 259508), (130, 129754), (260, 64877)]