20809580404

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{641}}^1\times {\mathrm{219353}}^1$

素因数の和:220035

約数の個数: 24

約数和(自身を含む): 37459521288

約数和(自身を除く): 16649940884

約数列:

[1, 2, 4, 37, 74, 148, 641, 1282, 2564, 23717, 47434, 94868, 219353, 438706, 877412, 8116061, 16232122, 32464244, 140605273, 281210546, 562421092, 5202395101, 10404790202, 20809580404]

約数ペア:

[(1, 20809580404), (2, 10404790202), (4, 5202395101), (37, 562421092), (74, 281210546), (148, 140605273), (641, 32464244), (1282, 16232122), (2564, 8116061), (23717, 877412), (47434, 438706), (94868, 219353)]