31688240

素因数分解:

$2^4\times 5^1\times {\mathrm{396103}}^1$

素因数の和:396116

約数の個数: 20

約数和(自身を含む): 73675344

約数和(自身を除く): 41987104

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 396103, 792206, 1584412, 1980515, 3168824, 3961030, 6337648, 7922060, 15844120, 31688240]

約数ペア:

[(1, 31688240), (2, 15844120), (4, 7922060), (5, 6337648), (8, 3961030), (10, 3168824), (16, 1980515), (20, 1584412), (40, 792206), (80, 396103)]