1311411920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{499}}^1$

素因数の和:570

約数の個数: 240

約数和(自身を含む): 3968496000

約数和(自身を除く): 2657084080

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 19, 20, 26, 28, 35, 38, 40, 52, 56, 65, 70, 76, 80, 91, 95, 104, 112, 130, 133, 140, 152, 182, 190, 208, 247, 260, 266, 280, 304, 361, 364, 380, 455, 494, 499, 520, 532, 560, 665, 722, 728, 760, 910, 988, 998, 1040, 1064, 1235, 1330, 1444, 1456, 1520, 1729, 1805, 1820, 1976, 1996, 2128, 2470, 2495, 2527, 2660, 2888, 3458, 3493, 3610, 3640, 3952, 3992, 4693, 4940, 4990, 5054, 5320, 5776, 6487, 6916, 6986, 7220, 7280, 7984, 8645, 9386, 9481, 9880, 9980, 10108, 10640, 12635, 12974, 13832, 13972, 14440, 17290, 17465, 18772, 18962, 19760, 19960, 20216, 23465, 25270, 25948, 27664, 27944, 28880, 32435, 32851, 34580, 34930, 37544, 37924, 39920, 40432, 45409, 46930, 47405, 50540, 51896, 55888, 64870, 65702, 66367, 69160, 69860, 75088, 75848, 90818, 93860, 94810, 101080, 103792, 123253, 129740, 131404, 132734, 138320, 139720, 151696, 164255, 180139, 181636, 187720, 189620, 202160, 227045, 246506, 259480, 262808, 265468, 279440, 328510, 331835, 360278, 363272, 375440, 379240, 454090, 493012, 518960, 525616, 530936, 616265, 657020, 663670, 720556, 726544, 758480, 862771, 900695, 908180, 986024, 1061872, 1232530, 1260973, 1314040, 1327340, 1441112, 1725542, 1801390, 1816360, 1972048, 2341807, 2465060, 2521946, 2628080, 2654680, 2882224, 3451084, 3602780, 3632720, 4313855, 4683614, 4930120, 5043892, 5309360, 6304865, 6902168, 7205560, 8627710, 9367228, 9860240, 10087784, 11709035, 12609730, 13804336, 14411120, 16392649, 17255420, 18734456, 20175568, 23418070, 25219460, 32785298, 34510840, 37468912, 46836140, 50438920, 65570596, 69021680, 81963245, 93672280, 100877840, 131141192, 163926490, 187344560, 262282384, 327852980, 655705960, 1311411920]

約数ペア:

[(1, 1311411920), (2, 655705960), (4, 327852980), (5, 262282384), (7, 187344560), (8, 163926490), (10, 131141192), (13, 100877840), (14, 93672280), (16, 81963245), (19, 69021680), (20, 65570596), (26, 50438920), (28, 46836140), (35, 37468912), (38, 34510840), (40, 32785298), (52, 25219460), (56, 23418070), (65, 20175568), (70, 18734456), (76, 17255420), (80, 16392649), (91, 14411120), (95, 13804336), (104, 12609730), (112, 11709035), (130, 10087784), (133, 9860240), (140, 9367228), (152, 8627710), (182, 7205560), (190, 6902168), (208, 6304865), (247, 5309360), (260, 5043892), (266, 4930120), (280, 4683614), (304, 4313855), (361, 3632720), (364, 3602780), (380, 3451084), (455, 2882224), (494, 2654680), (499, 2628080), (520, 2521946), (532, 2465060), (560, 2341807), (665, 1972048), (722, 1816360), (728, 1801390), (760, 1725542), (910, 1441112), (988, 1327340), (998, 1314040), (1040, 1260973), (1064, 1232530), (1235, 1061872), (1330, 986024), (1444, 908180), (1456, 900695), (1520, 862771), (1729, 758480), (1805, 726544), (1820, 720556), (1976, 663670), (1996, 657020), (2128, 616265), (2470, 530936), (2495, 525616), (2527, 518960), (2660, 493012), (2888, 454090), (3458, 379240), (3493, 375440), (3610, 363272), (3640, 360278), (3952, 331835), (3992, 328510), (4693, 279440), (4940, 265468), (4990, 262808), (5054, 259480), (5320, 246506), (5776, 227045), (6487, 202160), (6916, 189620), (6986, 187720), (7220, 181636), (7280, 180139), (7984, 164255), (8645, 151696), (9386, 139720), (9481, 138320), (9880, 132734), (9980, 131404), (10108, 129740), (10640, 123253), (12635, 103792), (12974, 101080), (13832, 94810), (13972, 93860), (14440, 90818), (17290, 75848), (17465, 75088), (18772, 69860), (18962, 69160), (19760, 66367), (19960, 65702), (20216, 64870), (23465, 55888), (25270, 51896), (25948, 50540), (27664, 47405), (27944, 46930), (28880, 45409), (32435, 40432), (32851, 39920), (34580, 37924), (34930, 37544)]