280143280

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1$

素因数の和:195

約数の個数: 160

約数和(自身を含む): 716525568

約数和(自身を除く): 436382288

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 37, 40, 43, 62, 71, 74, 80, 86, 124, 142, 148, 155, 172, 185, 215, 248, 284, 296, 310, 344, 355, 370, 430, 496, 568, 592, 620, 688, 710, 740, 860, 1136, 1147, 1240, 1333, 1420, 1480, 1591, 1720, 2201, 2294, 2480, 2627, 2666, 2840, 2960, 3053, 3182, 3440, 4402, 4588, 5254, 5332, 5680, 5735, 6106, 6364, 6665, 7955, 8804, 9176, 10508, 10664, 11005, 11470, 12212, 12728, 13135, 13330, 15265, 15910, 17608, 18352, 21016, 21328, 22010, 22940, 24424, 25456, 26270, 26660, 30530, 31820, 35216, 42032, 44020, 45880, 48848, 49321, 52540, 53320, 61060, 63640, 81437, 88040, 91760, 94643, 98642, 105080, 106640, 112961, 122120, 127280, 162874, 176080, 189286, 197284, 210160, 225922, 244240, 246605, 325748, 378572, 394568, 407185, 451844, 473215, 493210, 564805, 651496, 757144, 789136, 814370, 903688, 946430, 986420, 1129610, 1302992, 1514288, 1628740, 1807376, 1892860, 1972840, 2259220, 3257480, 3501791, 3785720, 3945680, 4518440, 6514960, 7003582, 7571440, 9036880, 14007164, 17508955, 28014328, 35017910, 56028656, 70035820, 140071640, 280143280]

約数ペア:

[(1, 280143280), (2, 140071640), (4, 70035820), (5, 56028656), (8, 35017910), (10, 28014328), (16, 17508955), (20, 14007164), (31, 9036880), (37, 7571440), (40, 7003582), (43, 6514960), (62, 4518440), (71, 3945680), (74, 3785720), (80, 3501791), (86, 3257480), (124, 2259220), (142, 1972840), (148, 1892860), (155, 1807376), (172, 1628740), (185, 1514288), (215, 1302992), (248, 1129610), (284, 986420), (296, 946430), (310, 903688), (344, 814370), (355, 789136), (370, 757144), (430, 651496), (496, 564805), (568, 493210), (592, 473215), (620, 451844), (688, 407185), (710, 394568), (740, 378572), (860, 325748), (1136, 246605), (1147, 244240), (1240, 225922), (1333, 210160), (1420, 197284), (1480, 189286), (1591, 176080), (1720, 162874), (2201, 127280), (2294, 122120), (2480, 112961), (2627, 106640), (2666, 105080), (2840, 98642), (2960, 94643), (3053, 91760), (3182, 88040), (3440, 81437), (4402, 63640), (4588, 61060), (5254, 53320), (5332, 52540), (5680, 49321), (5735, 48848), (6106, 45880), (6364, 44020), (6665, 42032), (7955, 35216), (8804, 31820), (9176, 30530), (10508, 26660), (10664, 26270), (11005, 25456), (11470, 24424), (12212, 22940), (12728, 22010), (13135, 21328), (13330, 21016), (15265, 18352), (15910, 17608)]