388593620

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{669989}}^1$

素因数の和:670027

約数の個数: 24

約数和(自身を含む): 844187400

約数和(自身を除く): 455593780

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 669989, 1339978, 2679956, 3349945, 6699890, 13399780, 19429681, 38859362, 77718724, 97148405, 194296810, 388593620]

約数ペア:

[(1, 388593620), (2, 194296810), (4, 97148405), (5, 77718724), (10, 38859362), (20, 19429681), (29, 13399780), (58, 6699890), (116, 3349945), (145, 2679956), (290, 1339978), (580, 669989)]