20790650

素因数分解:

$2^1\times 5^2\times {\mathrm{163}}^1\times {\mathrm{2551}}^1$

素因数の和:2726

約数の個数: 24

約数和(自身を含む): 38923104

約数和(自身を除く): 18132454

約数列:

[1, 2, 5, 10, 25, 50, 163, 326, 815, 1630, 2551, 4075, 5102, 8150, 12755, 25510, 63775, 127550, 415813, 831626, 2079065, 4158130, 10395325, 20790650]

約数ペア:

[(1, 20790650), (2, 10395325), (5, 4158130), (10, 2079065), (25, 831626), (50, 415813), (163, 127550), (326, 63775), (815, 25510), (1630, 12755), (2551, 8150), (4075, 5102)]