87501640

素因数分解:

$2^3\times 5^1\times {\mathrm{353}}^1\times {\mathrm{6197}}^1$

素因数の和:6561

約数の個数: 32

約数和(自身を含む): 197468280

約数和(自身を除く): 109966640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 353, 706, 1412, 1765, 2824, 3530, 6197, 7060, 12394, 14120, 24788, 30985, 49576, 61970, 123940, 247880, 2187541, 4375082, 8750164, 10937705, 17500328, 21875410, 43750820, 87501640]

約数ペア:

[(1, 87501640), (2, 43750820), (4, 21875410), (5, 17500328), (8, 10937705), (10, 8750164), (20, 4375082), (40, 2187541), (353, 247880), (706, 123940), (1412, 61970), (1765, 49576), (2824, 30985), (3530, 24788), (6197, 14120), (7060, 12394)]