20773280

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{37}}^1$

素因数の和:103

約数の個数: 144

約数和(自身を含む): 57312360

約数和(自身を除く): 36539080

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 29, 32, 37, 40, 44, 55, 58, 74, 80, 88, 110, 116, 121, 145, 148, 160, 176, 185, 220, 232, 242, 290, 296, 319, 352, 370, 407, 440, 464, 484, 580, 592, 605, 638, 740, 814, 880, 928, 968, 1073, 1160, 1184, 1210, 1276, 1480, 1595, 1628, 1760, 1936, 2035, 2146, 2320, 2420, 2552, 2960, 3190, 3256, 3509, 3872, 4070, 4292, 4477, 4640, 4840, 5104, 5365, 5920, 6380, 6512, 7018, 8140, 8584, 8954, 9680, 10208, 10730, 11803, 12760, 13024, 14036, 16280, 17168, 17545, 17908, 19360, 21460, 22385, 23606, 25520, 28072, 32560, 34336, 35090, 35816, 42920, 44770, 47212, 51040, 56144, 59015, 65120, 70180, 71632, 85840, 89540, 94424, 112288, 118030, 129833, 140360, 143264, 171680, 179080, 188848, 236060, 259666, 280720, 358160, 377696, 472120, 519332, 561440, 649165, 716320, 944240, 1038664, 1298330, 1888480, 2077328, 2596660, 4154656, 5193320, 10386640, 20773280]

約数ペア:

[(1, 20773280), (2, 10386640), (4, 5193320), (5, 4154656), (8, 2596660), (10, 2077328), (11, 1888480), (16, 1298330), (20, 1038664), (22, 944240), (29, 716320), (32, 649165), (37, 561440), (40, 519332), (44, 472120), (55, 377696), (58, 358160), (74, 280720), (80, 259666), (88, 236060), (110, 188848), (116, 179080), (121, 171680), (145, 143264), (148, 140360), (160, 129833), (176, 118030), (185, 112288), (220, 94424), (232, 89540), (242, 85840), (290, 71632), (296, 70180), (319, 65120), (352, 59015), (370, 56144), (407, 51040), (440, 47212), (464, 44770), (484, 42920), (580, 35816), (592, 35090), (605, 34336), (638, 32560), (740, 28072), (814, 25520), (880, 23606), (928, 22385), (968, 21460), (1073, 19360), (1160, 17908), (1184, 17545), (1210, 17168), (1276, 16280), (1480, 14036), (1595, 13024), (1628, 12760), (1760, 11803), (1936, 10730), (2035, 10208), (2146, 9680), (2320, 8954), (2420, 8584), (2552, 8140), (2960, 7018), (3190, 6512), (3256, 6380), (3509, 5920), (3872, 5365), (4070, 5104), (4292, 4840), (4477, 4640)]