18170440

素因数分解:

$2^3\times 5^1\times {\mathrm{317}}^1\times {\mathrm{1433}}^1$

素因数の和:1761

約数の個数: 32

約数和(自身を含む): 41041080

約数和(自身を除く): 22870640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 317, 634, 1268, 1433, 1585, 2536, 2866, 3170, 5732, 6340, 7165, 11464, 12680, 14330, 28660, 57320, 454261, 908522, 1817044, 2271305, 3634088, 4542610, 9085220, 18170440]

約数ペア:

[(1, 18170440), (2, 9085220), (4, 4542610), (5, 3634088), (8, 2271305), (10, 1817044), (20, 908522), (40, 454261), (317, 57320), (634, 28660), (1268, 14330), (1433, 12680), (1585, 11464), (2536, 7165), (2866, 6340), (3170, 5732)]