64641640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{230863}}^1$

素因数の和:230881

約数の個数: 32

約数和(自身を含む): 166222080

約数和(自身を除く): 101580440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 230863, 461726, 923452, 1154315, 1616041, 1846904, 2308630, 3232082, 4617260, 6464164, 8080205, 9234520, 12928328, 16160410, 32320820, 64641640]

約数ペア:

[(1, 64641640), (2, 32320820), (4, 16160410), (5, 12928328), (7, 9234520), (8, 8080205), (10, 6464164), (14, 4617260), (20, 3232082), (28, 2308630), (35, 1846904), (40, 1616041), (56, 1154315), (70, 923452), (140, 461726), (280, 230863)]