1320403840

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{83}}^1$

素因数の和:229

約数の個数: 256

約数和(自身を含む): 3775403520

約数和(自身を除く): 2454999680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 53, 56, 64, 67, 70, 80, 83, 106, 112, 128, 134, 140, 160, 166, 212, 224, 265, 268, 280, 320, 332, 335, 371, 415, 424, 448, 469, 530, 536, 560, 581, 640, 664, 670, 742, 830, 848, 896, 938, 1060, 1072, 1120, 1162, 1328, 1340, 1484, 1660, 1696, 1855, 1876, 2120, 2144, 2240, 2324, 2345, 2656, 2680, 2905, 2968, 3320, 3392, 3551, 3710, 3752, 4240, 4288, 4399, 4480, 4648, 4690, 5312, 5360, 5561, 5810, 5936, 6640, 6784, 7102, 7420, 7504, 8480, 8576, 8798, 9296, 9380, 10624, 10720, 11122, 11620, 11872, 13280, 14204, 14840, 15008, 16960, 17596, 17755, 18592, 18760, 21440, 21995, 22244, 23240, 23744, 24857, 26560, 27805, 28408, 29680, 30016, 30793, 33920, 35192, 35510, 37184, 37520, 38927, 42880, 43990, 44488, 46480, 47488, 49714, 53120, 55610, 56816, 59360, 60032, 61586, 70384, 71020, 74368, 75040, 77854, 87980, 88976, 92960, 99428, 111220, 113632, 118720, 123172, 124285, 140768, 142040, 150080, 153965, 155708, 175960, 177952, 185920, 194635, 198856, 222440, 227264, 237440, 246344, 248570, 281536, 284080, 294733, 300160, 307930, 311416, 351920, 355904, 371840, 389270, 397712, 444880, 454528, 492688, 497140, 563072, 568160, 589466, 615860, 622832, 703840, 711808, 778540, 795424, 889760, 985376, 994280, 1136320, 1178932, 1231720, 1245664, 1407680, 1473665, 1557080, 1590848, 1779520, 1970752, 1988560, 2063131, 2272640, 2357864, 2463440, 2491328, 2815360, 2947330, 3114160, 3181696, 3559040, 3941504, 3977120, 4126262, 4715728, 4926880, 4982656, 5894660, 6228320, 7954240, 8252524, 9431456, 9853760, 10315655, 11789320, 12456640, 15908480, 16505048, 18862912, 19707520, 20631310, 23578640, 24913280, 33010096, 37725824, 41262620, 47157280, 66020192, 82525240, 94314560, 132040384, 165050480, 188629120, 264080768, 330100960, 660201920, 1320403840]

約数ペア:

[(1, 1320403840), (2, 660201920), (4, 330100960), (5, 264080768), (7, 188629120), (8, 165050480), (10, 132040384), (14, 94314560), (16, 82525240), (20, 66020192), (28, 47157280), (32, 41262620), (35, 37725824), (40, 33010096), (53, 24913280), (56, 23578640), (64, 20631310), (67, 19707520), (70, 18862912), (80, 16505048), (83, 15908480), (106, 12456640), (112, 11789320), (128, 10315655), (134, 9853760), (140, 9431456), (160, 8252524), (166, 7954240), (212, 6228320), (224, 5894660), (265, 4982656), (268, 4926880), (280, 4715728), (320, 4126262), (332, 3977120), (335, 3941504), (371, 3559040), (415, 3181696), (424, 3114160), (448, 2947330), (469, 2815360), (530, 2491328), (536, 2463440), (560, 2357864), (581, 2272640), (640, 2063131), (664, 1988560), (670, 1970752), (742, 1779520), (830, 1590848), (848, 1557080), (896, 1473665), (938, 1407680), (1060, 1245664), (1072, 1231720), (1120, 1178932), (1162, 1136320), (1328, 994280), (1340, 985376), (1484, 889760), (1660, 795424), (1696, 778540), (1855, 711808), (1876, 703840), (2120, 622832), (2144, 615860), (2240, 589466), (2324, 568160), (2345, 563072), (2656, 497140), (2680, 492688), (2905, 454528), (2968, 444880), (3320, 397712), (3392, 389270), (3551, 371840), (3710, 355904), (3752, 351920), (4240, 311416), (4288, 307930), (4399, 300160), (4480, 294733), (4648, 284080), (4690, 281536), (5312, 248570), (5360, 246344), (5561, 237440), (5810, 227264), (5936, 222440), (6640, 198856), (6784, 194635), (7102, 185920), (7420, 177952), (7504, 175960), (8480, 155708), (8576, 153965), (8798, 150080), (9296, 142040), (9380, 140768), (10624, 124285), (10720, 123172), (11122, 118720), (11620, 113632), (11872, 111220), (13280, 99428), (14204, 92960), (14840, 88976), (15008, 87980), (16960, 77854), (17596, 75040), (17755, 74368), (18592, 71020), (18760, 70384), (21440, 61586), (21995, 60032), (22244, 59360), (23240, 56816), (23744, 55610), (24857, 53120), (26560, 49714), (27805, 47488), (28408, 46480), (29680, 44488), (30016, 43990), (30793, 42880), (33920, 38927), (35192, 37520), (35510, 37184)]