18571880

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{4597}}^1$

素因数の和:4709

約数の個数: 32

約数和(自身を含む): 42209640

約数和(自身を除く): 23637760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 4597, 9194, 18388, 22985, 36776, 45970, 91940, 183880, 464297, 928594, 1857188, 2321485, 3714376, 4642970, 9285940, 18571880]

約数ペア:

[(1, 18571880), (2, 9285940), (4, 4642970), (5, 3714376), (8, 2321485), (10, 1857188), (20, 928594), (40, 464297), (101, 183880), (202, 91940), (404, 45970), (505, 36776), (808, 22985), (1010, 18388), (2020, 9194), (4040, 4597)]