81411642

素因数分解:

$2^1\times 3^4\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1$

素因数の和:130

約数の個数: 160

約数和(自身を含む): 214663680

約数和(自身を除く): 133252038

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 29, 31, 39, 43, 54, 58, 62, 78, 81, 86, 87, 93, 117, 129, 162, 174, 186, 234, 258, 261, 279, 351, 377, 387, 403, 522, 558, 559, 702, 754, 774, 783, 806, 837, 899, 1053, 1118, 1131, 1161, 1209, 1247, 1333, 1566, 1674, 1677, 1798, 2106, 2262, 2322, 2349, 2418, 2494, 2511, 2666, 2697, 3354, 3393, 3483, 3627, 3741, 3999, 4698, 5022, 5031, 5394, 6786, 6966, 7254, 7482, 7998, 8091, 10062, 10179, 10881, 11223, 11687, 11997, 15093, 16182, 16211, 17329, 20358, 21762, 22446, 23374, 23994, 24273, 30186, 30537, 32422, 32643, 33669, 34658, 35061, 35991, 38657, 45279, 48546, 48633, 51987, 61074, 65286, 67338, 70122, 71982, 72819, 77314, 90558, 97266, 101007, 103974, 105183, 107973, 115971, 145638, 145899, 155961, 202014, 210366, 215946, 231942, 291798, 311922, 315549, 347913, 437697, 467883, 502541, 631098, 695826, 875394, 935766, 946647, 1005082, 1043739, 1313091, 1403649, 1507623, 1893294, 2087478, 2626182, 2807298, 3015246, 3131217, 4522869, 6262434, 9045738, 13568607, 27137214, 40705821, 81411642]

約数ペア:

[(1, 81411642), (2, 40705821), (3, 27137214), (6, 13568607), (9, 9045738), (13, 6262434), (18, 4522869), (26, 3131217), (27, 3015246), (29, 2807298), (31, 2626182), (39, 2087478), (43, 1893294), (54, 1507623), (58, 1403649), (62, 1313091), (78, 1043739), (81, 1005082), (86, 946647), (87, 935766), (93, 875394), (117, 695826), (129, 631098), (162, 502541), (174, 467883), (186, 437697), (234, 347913), (258, 315549), (261, 311922), (279, 291798), (351, 231942), (377, 215946), (387, 210366), (403, 202014), (522, 155961), (558, 145899), (559, 145638), (702, 115971), (754, 107973), (774, 105183), (783, 103974), (806, 101007), (837, 97266), (899, 90558), (1053, 77314), (1118, 72819), (1131, 71982), (1161, 70122), (1209, 67338), (1247, 65286), (1333, 61074), (1566, 51987), (1674, 48633), (1677, 48546), (1798, 45279), (2106, 38657), (2262, 35991), (2322, 35061), (2349, 34658), (2418, 33669), (2494, 32643), (2511, 32422), (2666, 30537), (2697, 30186), (3354, 24273), (3393, 23994), (3483, 23374), (3627, 22446), (3741, 21762), (3999, 20358), (4698, 17329), (5022, 16211), (5031, 16182), (5394, 15093), (6786, 11997), (6966, 11687), (7254, 11223), (7482, 10881), (7998, 10179), (8091, 10062)]