18674680

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{193}}^1$

素因数の和:304

約数の個数: 64

約数和(自身を含む): 43999200

約数和(自身を除く): 25324520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 59, 82, 118, 164, 193, 205, 236, 295, 328, 386, 410, 472, 590, 772, 820, 965, 1180, 1544, 1640, 1930, 2360, 2419, 3860, 4838, 7720, 7913, 9676, 11387, 12095, 15826, 19352, 22774, 24190, 31652, 39565, 45548, 48380, 56935, 63304, 79130, 91096, 96760, 113870, 158260, 227740, 316520, 455480, 466867, 933734, 1867468, 2334335, 3734936, 4668670, 9337340, 18674680]

約数ペア:

[(1, 18674680), (2, 9337340), (4, 4668670), (5, 3734936), (8, 2334335), (10, 1867468), (20, 933734), (40, 466867), (41, 455480), (59, 316520), (82, 227740), (118, 158260), (164, 113870), (193, 96760), (205, 91096), (236, 79130), (295, 63304), (328, 56935), (386, 48380), (410, 45548), (472, 39565), (590, 31652), (772, 24190), (820, 22774), (965, 19352), (1180, 15826), (1544, 12095), (1640, 11387), (1930, 9676), (2360, 7913), (2419, 7720), (3860, 4838)]