18768420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{9479}}^1$

素因数の和:9505

約数の個数: 72

約数和(自身を含む): 62112960

約数和(自身を除く): 43344540

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 9479, 18958, 28437, 37916, 47395, 56874, 85311, 94790, 104269, 113748, 142185, 170622, 189580, 208538, 284370, 312807, 341244, 417076, 426555, 521345, 568740, 625614, 853110, 938421, 1042690, 1251228, 1564035, 1706220, 1876842, 2085380, 3128070, 3753684, 4692105, 6256140, 9384210, 18768420]

約数ペア:

[(1, 18768420), (2, 9384210), (3, 6256140), (4, 4692105), (5, 3753684), (6, 3128070), (9, 2085380), (10, 1876842), (11, 1706220), (12, 1564035), (15, 1251228), (18, 1042690), (20, 938421), (22, 853110), (30, 625614), (33, 568740), (36, 521345), (44, 426555), (45, 417076), (55, 341244), (60, 312807), (66, 284370), (90, 208538), (99, 189580), (110, 170622), (132, 142185), (165, 113748), (180, 104269), (198, 94790), (220, 85311), (330, 56874), (396, 47395), (495, 37916), (660, 28437), (990, 18958), (1980, 9479)]