261259920

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{3329}}^1$

素因数の和:3457

約数の個数: 120

約数和(自身を含む): 885713400

約数和(自身を除く): 624453480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 109, 120, 144, 180, 218, 240, 327, 360, 436, 545, 654, 720, 872, 981, 1090, 1308, 1635, 1744, 1962, 2180, 2616, 3270, 3329, 3924, 4360, 4905, 5232, 6540, 6658, 7848, 8720, 9810, 9987, 13080, 13316, 15696, 16645, 19620, 19974, 26160, 26632, 29961, 33290, 39240, 39948, 49935, 53264, 59922, 66580, 78480, 79896, 99870, 119844, 133160, 149805, 159792, 199740, 239688, 266320, 299610, 362861, 399480, 479376, 599220, 725722, 798960, 1088583, 1198440, 1451444, 1814305, 2177166, 2396880, 2902888, 3265749, 3628610, 4354332, 5442915, 5805776, 6531498, 7257220, 8708664, 10885830, 13062996, 14514440, 16328745, 17417328, 21771660, 26125992, 29028880, 32657490, 43543320, 52251984, 65314980, 87086640, 130629960, 261259920]

約数ペア:

[(1, 261259920), (2, 130629960), (3, 87086640), (4, 65314980), (5, 52251984), (6, 43543320), (8, 32657490), (9, 29028880), (10, 26125992), (12, 21771660), (15, 17417328), (16, 16328745), (18, 14514440), (20, 13062996), (24, 10885830), (30, 8708664), (36, 7257220), (40, 6531498), (45, 5805776), (48, 5442915), (60, 4354332), (72, 3628610), (80, 3265749), (90, 2902888), (109, 2396880), (120, 2177166), (144, 1814305), (180, 1451444), (218, 1198440), (240, 1088583), (327, 798960), (360, 725722), (436, 599220), (545, 479376), (654, 399480), (720, 362861), (872, 299610), (981, 266320), (1090, 239688), (1308, 199740), (1635, 159792), (1744, 149805), (1962, 133160), (2180, 119844), (2616, 99870), (3270, 79896), (3329, 78480), (3924, 66580), (4360, 59922), (4905, 53264), (5232, 49935), (6540, 39948), (6658, 39240), (7848, 33290), (8720, 29961), (9810, 26632), (9987, 26160), (13080, 19974), (13316, 19620), (15696, 16645)]