2041640

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1187}}^1$

素因数の和:1241

約数の個数: 32

約数和(自身を含む): 4704480

約数和(自身を除く): 2662840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1187, 1720, 2374, 4748, 5935, 9496, 11870, 23740, 47480, 51041, 102082, 204164, 255205, 408328, 510410, 1020820, 2041640]

約数ペア:

[(1, 2041640), (2, 1020820), (4, 510410), (5, 408328), (8, 255205), (10, 204164), (20, 102082), (40, 51041), (43, 47480), (86, 23740), (172, 11870), (215, 9496), (344, 5935), (430, 4748), (860, 2374), (1187, 1720)]