264393640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{944263}}^1$

素因数の和:944281

約数の個数: 32

約数和(自身を含む): 679870080

約数和(自身を除く): 415476440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 944263, 1888526, 3777052, 4721315, 6609841, 7554104, 9442630, 13219682, 18885260, 26439364, 33049205, 37770520, 52878728, 66098410, 132196820, 264393640]

約数ペア:

[(1, 264393640), (2, 132196820), (4, 66098410), (5, 52878728), (7, 37770520), (8, 33049205), (10, 26439364), (14, 18885260), (20, 13219682), (28, 9442630), (35, 7554104), (40, 6609841), (56, 4721315), (70, 3777052), (140, 1888526), (280, 944263)]