2138440

素因数分解:

$2^3\times 5^1\times {\mathrm{193}}^1\times {\mathrm{277}}^1$

素因数の和:481

約数の個数: 32

約数和(自身を含む): 4853880

約数和(自身を除く): 2715440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 193, 277, 386, 554, 772, 965, 1108, 1385, 1544, 1930, 2216, 2770, 3860, 5540, 7720, 11080, 53461, 106922, 213844, 267305, 427688, 534610, 1069220, 2138440]

約数ペア:

[(1, 2138440), (2, 1069220), (4, 534610), (5, 427688), (8, 267305), (10, 213844), (20, 106922), (40, 53461), (193, 11080), (277, 7720), (386, 5540), (554, 3860), (772, 2770), (965, 2216), (1108, 1930), (1385, 1544)]