209006180

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{222347}}^1$

素因数の和:222403

約数の個数: 24

約数和(自身を含む): 448253568

約数和(自身を除く): 239247388

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940, 222347, 444694, 889388, 1111735, 2223470, 4446940, 10450309, 20900618, 41801236, 52251545, 104503090, 209006180]

約数ペア:

[(1, 209006180), (2, 104503090), (4, 52251545), (5, 41801236), (10, 20900618), (20, 10450309), (47, 4446940), (94, 2223470), (188, 1111735), (235, 889388), (470, 444694), (940, 222347)]