66486280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{2351}}^1$

素因数の和:2470

約数の個数: 64

約数和(自身を含む): 172730880

約数和(自身を除く): 106244600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 101, 140, 202, 280, 404, 505, 707, 808, 1010, 1414, 2020, 2351, 2828, 3535, 4040, 4702, 5656, 7070, 9404, 11755, 14140, 16457, 18808, 23510, 28280, 32914, 47020, 65828, 82285, 94040, 131656, 164570, 237451, 329140, 474902, 658280, 949804, 1187255, 1662157, 1899608, 2374510, 3324314, 4749020, 6648628, 8310785, 9498040, 13297256, 16621570, 33243140, 66486280]

約数ペア:

[(1, 66486280), (2, 33243140), (4, 16621570), (5, 13297256), (7, 9498040), (8, 8310785), (10, 6648628), (14, 4749020), (20, 3324314), (28, 2374510), (35, 1899608), (40, 1662157), (56, 1187255), (70, 949804), (101, 658280), (140, 474902), (202, 329140), (280, 237451), (404, 164570), (505, 131656), (707, 94040), (808, 82285), (1010, 65828), (1414, 47020), (2020, 32914), (2351, 28280), (2828, 23510), (3535, 18808), (4040, 16457), (4702, 14140), (5656, 11755), (7070, 9404)]