28183320

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{647}}^1$

素因数の和:686

約数の個数: 144

約数和(自身を含む): 100835280

約数和(自身を除く): 72651960

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 30, 33, 36, 40, 44, 45, 55, 60, 66, 72, 88, 90, 99, 110, 120, 121, 132, 165, 180, 198, 220, 242, 264, 330, 360, 363, 396, 440, 484, 495, 605, 647, 660, 726, 792, 968, 990, 1089, 1210, 1294, 1320, 1452, 1815, 1941, 1980, 2178, 2420, 2588, 2904, 3235, 3630, 3882, 3960, 4356, 4840, 5176, 5445, 5823, 6470, 7117, 7260, 7764, 8712, 9705, 10890, 11646, 12940, 14234, 14520, 15528, 19410, 21351, 21780, 23292, 25880, 28468, 29115, 35585, 38820, 42702, 43560, 46584, 56936, 58230, 64053, 71170, 77640, 78287, 85404, 106755, 116460, 128106, 142340, 156574, 170808, 213510, 232920, 234861, 256212, 284680, 313148, 320265, 391435, 427020, 469722, 512424, 626296, 640530, 704583, 782870, 854040, 939444, 1174305, 1281060, 1409166, 1565740, 1878888, 2348610, 2562120, 2818332, 3131480, 3522915, 4697220, 5636664, 7045830, 9394440, 14091660, 28183320]

約数ペア:

[(1, 28183320), (2, 14091660), (3, 9394440), (4, 7045830), (5, 5636664), (6, 4697220), (8, 3522915), (9, 3131480), (10, 2818332), (11, 2562120), (12, 2348610), (15, 1878888), (18, 1565740), (20, 1409166), (22, 1281060), (24, 1174305), (30, 939444), (33, 854040), (36, 782870), (40, 704583), (44, 640530), (45, 626296), (55, 512424), (60, 469722), (66, 427020), (72, 391435), (88, 320265), (90, 313148), (99, 284680), (110, 256212), (120, 234861), (121, 232920), (132, 213510), (165, 170808), (180, 156574), (198, 142340), (220, 128106), (242, 116460), (264, 106755), (330, 85404), (360, 78287), (363, 77640), (396, 71170), (440, 64053), (484, 58230), (495, 56936), (605, 46584), (647, 43560), (660, 42702), (726, 38820), (792, 35585), (968, 29115), (990, 28468), (1089, 25880), (1210, 23292), (1294, 21780), (1320, 21351), (1452, 19410), (1815, 15528), (1941, 14520), (1980, 14234), (2178, 12940), (2420, 11646), (2588, 10890), (2904, 9705), (3235, 8712), (3630, 7764), (3882, 7260), (3960, 7117), (4356, 6470), (4840, 5823), (5176, 5445)]