20941100

素因数分解:

$2^2\times 5^2\times {\mathrm{197}}^1\times {\mathrm{1063}}^1$

素因数の和:1274

約数の個数: 36

約数和(自身を含む): 45715824

約数和(自身を除く): 24774724

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 197, 394, 788, 985, 1063, 1970, 2126, 3940, 4252, 4925, 5315, 9850, 10630, 19700, 21260, 26575, 53150, 106300, 209411, 418822, 837644, 1047055, 2094110, 4188220, 5235275, 10470550, 20941100]

約数ペア:

[(1, 20941100), (2, 10470550), (4, 5235275), (5, 4188220), (10, 2094110), (20, 1047055), (25, 837644), (50, 418822), (100, 209411), (197, 106300), (394, 53150), (788, 26575), (985, 21260), (1063, 19700), (1970, 10630), (2126, 9850), (3940, 5315), (4252, 4925)]