20688755568

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{269}}^1\times {\mathrm{499}}^1$

素因数の和:824

約数の個数: 240

約数和(自身を含む): 61268400000

約数和(自身を除く): 40579644432

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 19, 24, 26, 38, 39, 48, 52, 57, 76, 78, 104, 114, 152, 156, 169, 208, 228, 247, 269, 304, 312, 338, 456, 494, 499, 507, 538, 624, 676, 741, 807, 912, 988, 998, 1014, 1076, 1352, 1482, 1497, 1614, 1976, 1996, 2028, 2152, 2704, 2964, 2994, 3211, 3228, 3497, 3952, 3992, 4056, 4304, 5111, 5928, 5988, 6422, 6456, 6487, 6994, 7984, 8112, 9481, 9633, 10222, 10491, 11856, 11976, 12844, 12912, 12974, 13988, 15333, 18962, 19266, 19461, 20444, 20982, 23952, 25688, 25948, 27976, 28443, 30666, 37924, 38532, 38922, 40888, 41964, 45461, 51376, 51896, 55952, 56886, 61332, 66443, 75848, 77064, 77844, 81776, 83928, 84331, 90922, 103792, 113772, 122664, 123253, 132886, 134231, 136383, 151696, 154128, 155688, 167856, 168662, 181844, 199329, 227544, 245328, 246506, 252993, 265772, 268462, 272766, 311376, 337324, 363688, 369759, 398658, 402693, 455088, 493012, 505986, 531544, 536924, 545532, 674648, 727376, 739518, 797316, 805386, 863759, 986024, 1011972, 1063088, 1073848, 1091064, 1349296, 1479036, 1594632, 1602289, 1610772, 1727518, 1745003, 1972048, 2023944, 2147696, 2182128, 2550389, 2591277, 2958072, 3189264, 3204578, 3221544, 3455036, 3490006, 4047888, 4806867, 5100778, 5182554, 5235009, 5916144, 6409156, 6443088, 6910072, 6980012, 7651167, 9613734, 10201556, 10365108, 10470018, 12818312, 13820144, 13960024, 15302334, 19227468, 20403112, 20730216, 20940036, 22685039, 25636624, 27920048, 30604668, 33155057, 38454936, 40806224, 41460432, 41880072, 45370078, 61209336, 66310114, 68055117, 76909872, 83760144, 90740156, 99465171, 122418672, 132620228, 136110234, 181480312, 198930342, 265240456, 272220468, 362960624, 397860684, 431015741, 530480912, 544440936, 795721368, 862031482, 1088881872, 1293047223, 1591442736, 1724062964, 2586094446, 3448125928, 5172188892, 6896251856, 10344377784, 20688755568]

約数ペア:

[(1, 20688755568), (2, 10344377784), (3, 6896251856), (4, 5172188892), (6, 3448125928), (8, 2586094446), (12, 1724062964), (13, 1591442736), (16, 1293047223), (19, 1088881872), (24, 862031482), (26, 795721368), (38, 544440936), (39, 530480912), (48, 431015741), (52, 397860684), (57, 362960624), (76, 272220468), (78, 265240456), (104, 198930342), (114, 181480312), (152, 136110234), (156, 132620228), (169, 122418672), (208, 99465171), (228, 90740156), (247, 83760144), (269, 76909872), (304, 68055117), (312, 66310114), (338, 61209336), (456, 45370078), (494, 41880072), (499, 41460432), (507, 40806224), (538, 38454936), (624, 33155057), (676, 30604668), (741, 27920048), (807, 25636624), (912, 22685039), (988, 20940036), (998, 20730216), (1014, 20403112), (1076, 19227468), (1352, 15302334), (1482, 13960024), (1497, 13820144), (1614, 12818312), (1976, 10470018), (1996, 10365108), (2028, 10201556), (2152, 9613734), (2704, 7651167), (2964, 6980012), (2994, 6910072), (3211, 6443088), (3228, 6409156), (3497, 5916144), (3952, 5235009), (3992, 5182554), (4056, 5100778), (4304, 4806867), (5111, 4047888), (5928, 3490006), (5988, 3455036), (6422, 3221544), (6456, 3204578), (6487, 3189264), (6994, 2958072), (7984, 2591277), (8112, 2550389), (9481, 2182128), (9633, 2147696), (10222, 2023944), (10491, 1972048), (11856, 1745003), (11976, 1727518), (12844, 1610772), (12912, 1602289), (12974, 1594632), (13988, 1479036), (15333, 1349296), (18962, 1091064), (19266, 1073848), (19461, 1063088), (20444, 1011972), (20982, 986024), (23952, 863759), (25688, 805386), (25948, 797316), (27976, 739518), (28443, 727376), (30666, 674648), (37924, 545532), (38532, 536924), (38922, 531544), (40888, 505986), (41964, 493012), (45461, 455088), (51376, 402693), (51896, 398658), (55952, 369759), (56886, 363688), (61332, 337324), (66443, 311376), (75848, 272766), (77064, 268462), (77844, 265772), (81776, 252993), (83928, 246506), (84331, 245328), (90922, 227544), (103792, 199329), (113772, 181844), (122664, 168662), (123253, 167856), (132886, 155688), (134231, 154128), (136383, 151696)]