20683700

素因数分解:

$2^2\times 5^2\times {\mathrm{397}}^1\times {\mathrm{521}}^1$

素因数の和:932

約数の個数: 36

約数和(自身を含む): 45083052

約数和(自身を除く): 24399352

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 397, 521, 794, 1042, 1588, 1985, 2084, 2605, 3970, 5210, 7940, 9925, 10420, 13025, 19850, 26050, 39700, 52100, 206837, 413674, 827348, 1034185, 2068370, 4136740, 5170925, 10341850, 20683700]

約数ペア:

[(1, 20683700), (2, 10341850), (4, 5170925), (5, 4136740), (10, 2068370), (20, 1034185), (25, 827348), (50, 413674), (100, 206837), (397, 52100), (521, 39700), (794, 26050), (1042, 19850), (1588, 13025), (1985, 10420), (2084, 9925), (2605, 7940), (3970, 5210)]