202155580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{918889}}^1$

素因数の和:918909

約数の個数: 24

約数和(自身を含む): 463120560

約数和(自身を除く): 260964980

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 918889, 1837778, 3675556, 4594445, 9188890, 10107779, 18377780, 20215558, 40431116, 50538895, 101077790, 202155580]

約数ペア:

[(1, 202155580), (2, 101077790), (4, 50538895), (5, 40431116), (10, 20215558), (11, 18377780), (20, 10107779), (22, 9188890), (44, 4594445), (55, 3675556), (110, 1837778), (220, 918889)]