20993800

素因数分解:

$2^3\times 5^2\times {\mathrm{37}}^1\times {\mathrm{2837}}^1$

素因数の和:2890

約数の個数: 48

約数和(自身を含む): 50147460

約数和(自身を除く): 29153660

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 37, 40, 50, 74, 100, 148, 185, 200, 296, 370, 740, 925, 1480, 1850, 2837, 3700, 5674, 7400, 11348, 14185, 22696, 28370, 56740, 70925, 104969, 113480, 141850, 209938, 283700, 419876, 524845, 567400, 839752, 1049690, 2099380, 2624225, 4198760, 5248450, 10496900, 20993800]

約数ペア:

[(1, 20993800), (2, 10496900), (4, 5248450), (5, 4198760), (8, 2624225), (10, 2099380), (20, 1049690), (25, 839752), (37, 567400), (40, 524845), (50, 419876), (74, 283700), (100, 209938), (148, 141850), (185, 113480), (200, 104969), (296, 70925), (370, 56740), (740, 28370), (925, 22696), (1480, 14185), (1850, 11348), (2837, 7400), (3700, 5674)]