9978020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{38377}}^1$

素因数の和:38399

約数の個数: 24

約数和(自身を含む): 22566264

約数和(自身を除く): 12588244

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 38377, 76754, 153508, 191885, 383770, 498901, 767540, 997802, 1995604, 2494505, 4989010, 9978020]

約数ペア:

[(1, 9978020), (2, 4989010), (4, 2494505), (5, 1995604), (10, 997802), (13, 767540), (20, 498901), (26, 383770), (52, 191885), (65, 153508), (130, 76754), (260, 38377)]