17961640

素因数分解:

$2^3\times 5^1\times {\mathrm{191}}^1\times {\mathrm{2351}}^1$

素因数の和:2553

約数の個数: 32

約数和(自身を含む): 40642560

約数和(自身を除く): 22680920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 191, 382, 764, 955, 1528, 1910, 2351, 3820, 4702, 7640, 9404, 11755, 18808, 23510, 47020, 94040, 449041, 898082, 1796164, 2245205, 3592328, 4490410, 8980820, 17961640]

約数ペア:

[(1, 17961640), (2, 8980820), (4, 4490410), (5, 3592328), (8, 2245205), (10, 1796164), (20, 898082), (40, 449041), (191, 94040), (382, 47020), (764, 23510), (955, 18808), (1528, 11755), (1910, 9404), (2351, 7640), (3820, 4702)]