209525620

素因数分解:

$2^2\times 5^1\times {\mathrm{2239}}^1\times {\mathrm{4679}}^1$

素因数の和:6927

約数の個数: 24

約数和(自身を含む): 440294400

約数和(自身を除く): 230768780

約数列:

[1, 2, 4, 5, 10, 20, 2239, 4478, 4679, 8956, 9358, 11195, 18716, 22390, 23395, 44780, 46790, 93580, 10476281, 20952562, 41905124, 52381405, 104762810, 209525620]

約数ペア:

[(1, 209525620), (2, 104762810), (4, 52381405), (5, 41905124), (10, 20952562), (20, 10476281), (2239, 93580), (4478, 46790), (4679, 44780), (8956, 23395), (9358, 22390), (11195, 18716)]