19744380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{229}}^1\times {\mathrm{479}}^1$

素因数の和:723

約数の個数: 72

約数和(自身を含む): 60278400

約数和(自身を除く): 40534020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 229, 458, 479, 687, 916, 958, 1145, 1374, 1437, 1916, 2061, 2290, 2395, 2748, 2874, 3435, 4122, 4311, 4580, 4790, 5748, 6870, 7185, 8244, 8622, 9580, 10305, 13740, 14370, 17244, 20610, 21555, 28740, 41220, 43110, 86220, 109691, 219382, 329073, 438764, 548455, 658146, 987219, 1096910, 1316292, 1645365, 1974438, 2193820, 3290730, 3948876, 4936095, 6581460, 9872190, 19744380]

約数ペア:

[(1, 19744380), (2, 9872190), (3, 6581460), (4, 4936095), (5, 3948876), (6, 3290730), (9, 2193820), (10, 1974438), (12, 1645365), (15, 1316292), (18, 1096910), (20, 987219), (30, 658146), (36, 548455), (45, 438764), (60, 329073), (90, 219382), (180, 109691), (229, 86220), (458, 43110), (479, 41220), (687, 28740), (916, 21555), (958, 20610), (1145, 17244), (1374, 14370), (1437, 13740), (1916, 10305), (2061, 9580), (2290, 8622), (2395, 8244), (2748, 7185), (2874, 6870), (3435, 5748), (4122, 4790), (4311, 4580)]