20456650

素因数分解:

$2^1\times 5^2\times {\mathrm{89}}^1\times {\mathrm{4597}}^1$

素因数の和:4698

約数の個数: 24

約数和(自身を含む): 38485260

約数和(自身を除く): 18028610

約数列:

[1, 2, 5, 10, 25, 50, 89, 178, 445, 890, 2225, 4450, 4597, 9194, 22985, 45970, 114925, 229850, 409133, 818266, 2045665, 4091330, 10228325, 20456650]

約数ペア:

[(1, 20456650), (2, 10228325), (5, 4091330), (10, 2045665), (25, 818266), (50, 409133), (89, 229850), (178, 114925), (445, 45970), (890, 22985), (2225, 9194), (4450, 4597)]