27978440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{99923}}^1$

素因数の和:99941

約数の個数: 32

約数和(自身を含む): 71945280

約数和(自身を除く): 43966840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 99923, 199846, 399692, 499615, 699461, 799384, 999230, 1398922, 1998460, 2797844, 3497305, 3996920, 5595688, 6994610, 13989220, 27978440]

約数ペア:

[(1, 27978440), (2, 13989220), (4, 6994610), (5, 5595688), (7, 3996920), (8, 3497305), (10, 2797844), (14, 1998460), (20, 1398922), (28, 999230), (35, 799384), (40, 699461), (56, 499615), (70, 399692), (140, 199846), (280, 99923)]