206965710

素因数分解:

$2^1\times 3^2\times 5^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{661}}^1$

素因数の和:759

約数の個数: 144

約数和(自身を含む): 635742432

約数和(自身を除く): 428776722

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 49, 63, 70, 71, 90, 98, 105, 126, 142, 147, 210, 213, 245, 294, 315, 355, 426, 441, 490, 497, 630, 639, 661, 710, 735, 882, 994, 1065, 1278, 1322, 1470, 1491, 1983, 2130, 2205, 2485, 2982, 3195, 3305, 3479, 3966, 4410, 4473, 4627, 4970, 5949, 6390, 6610, 6958, 7455, 8946, 9254, 9915, 10437, 11898, 13881, 14910, 17395, 19830, 20874, 22365, 23135, 27762, 29745, 31311, 32389, 34790, 41643, 44730, 46270, 46931, 52185, 59490, 62622, 64778, 69405, 83286, 93862, 97167, 104370, 138810, 140793, 156555, 161945, 194334, 208215, 234655, 281586, 291501, 313110, 323890, 328517, 416430, 422379, 469310, 485835, 583002, 657034, 703965, 844758, 971670, 985551, 1407930, 1457505, 1642585, 1971102, 2111895, 2299619, 2915010, 2956653, 3285170, 4223790, 4599238, 4927755, 5913306, 6898857, 9855510, 11498095, 13797714, 14783265, 20696571, 22996190, 29566530, 34494285, 41393142, 68988570, 103482855, 206965710]

約数ペア:

[(1, 206965710), (2, 103482855), (3, 68988570), (5, 41393142), (6, 34494285), (7, 29566530), (9, 22996190), (10, 20696571), (14, 14783265), (15, 13797714), (18, 11498095), (21, 9855510), (30, 6898857), (35, 5913306), (42, 4927755), (45, 4599238), (49, 4223790), (63, 3285170), (70, 2956653), (71, 2915010), (90, 2299619), (98, 2111895), (105, 1971102), (126, 1642585), (142, 1457505), (147, 1407930), (210, 985551), (213, 971670), (245, 844758), (294, 703965), (315, 657034), (355, 583002), (426, 485835), (441, 469310), (490, 422379), (497, 416430), (630, 328517), (639, 323890), (661, 313110), (710, 291501), (735, 281586), (882, 234655), (994, 208215), (1065, 194334), (1278, 161945), (1322, 156555), (1470, 140793), (1491, 138810), (1983, 104370), (2130, 97167), (2205, 93862), (2485, 83286), (2982, 69405), (3195, 64778), (3305, 62622), (3479, 59490), (3966, 52185), (4410, 46931), (4473, 46270), (4627, 44730), (4970, 41643), (5949, 34790), (6390, 32389), (6610, 31311), (6958, 29745), (7455, 27762), (8946, 23135), (9254, 22365), (9915, 20874), (10437, 19830), (11898, 17395), (13881, 14910)]