12954040

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{499}}^1$

素因数の和:580

約数の個数: 64

約数和(自身を含む): 32400000

約数和(自身を除く): 19445960

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 59, 88, 110, 118, 220, 236, 295, 440, 472, 499, 590, 649, 998, 1180, 1298, 1996, 2360, 2495, 2596, 3245, 3992, 4990, 5192, 5489, 6490, 9980, 10978, 12980, 19960, 21956, 25960, 27445, 29441, 43912, 54890, 58882, 109780, 117764, 147205, 219560, 235528, 294410, 323851, 588820, 647702, 1177640, 1295404, 1619255, 2590808, 3238510, 6477020, 12954040]

約数ペア:

[(1, 12954040), (2, 6477020), (4, 3238510), (5, 2590808), (8, 1619255), (10, 1295404), (11, 1177640), (20, 647702), (22, 588820), (40, 323851), (44, 294410), (55, 235528), (59, 219560), (88, 147205), (110, 117764), (118, 109780), (220, 58882), (236, 54890), (295, 43912), (440, 29441), (472, 27445), (499, 25960), (590, 21956), (649, 19960), (998, 12980), (1180, 10978), (1298, 9980), (1996, 6490), (2360, 5489), (2495, 5192), (2596, 4990), (3245, 3992)]