1389470960

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{109}}^1\times {\mathrm{2017}}^1$

素因数の和:2218

約数の個数: 80

約数和(自身を含む): 3303062400

約数和(自身を除く): 1913591440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 109, 158, 218, 316, 395, 436, 545, 632, 790, 872, 1090, 1264, 1580, 1744, 2017, 2180, 3160, 4034, 4360, 6320, 8068, 8611, 8720, 10085, 16136, 17222, 20170, 32272, 34444, 40340, 43055, 68888, 80680, 86110, 137776, 159343, 161360, 172220, 219853, 318686, 344440, 439706, 637372, 688880, 796715, 879412, 1099265, 1274744, 1593430, 1758824, 2198530, 2549488, 3186860, 3517648, 4397060, 6373720, 8794120, 12747440, 17368387, 17588240, 34736774, 69473548, 86841935, 138947096, 173683870, 277894192, 347367740, 694735480, 1389470960]

約数ペア:

[(1, 1389470960), (2, 694735480), (4, 347367740), (5, 277894192), (8, 173683870), (10, 138947096), (16, 86841935), (20, 69473548), (40, 34736774), (79, 17588240), (80, 17368387), (109, 12747440), (158, 8794120), (218, 6373720), (316, 4397060), (395, 3517648), (436, 3186860), (545, 2549488), (632, 2198530), (790, 1758824), (872, 1593430), (1090, 1274744), (1264, 1099265), (1580, 879412), (1744, 796715), (2017, 688880), (2180, 637372), (3160, 439706), (4034, 344440), (4360, 318686), (6320, 219853), (8068, 172220), (8611, 161360), (8720, 159343), (10085, 137776), (16136, 86110), (17222, 80680), (20170, 68888), (32272, 43055), (34444, 40340)]