81347280

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{1181}}^1$

素因数の和:1245

約数の個数: 160

約数和(自身を含む): 295481088

約数和(自身を除く): 214133808

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 41, 42, 48, 56, 60, 70, 80, 82, 84, 105, 112, 120, 123, 140, 164, 168, 205, 210, 240, 246, 280, 287, 328, 336, 410, 420, 492, 560, 574, 615, 656, 820, 840, 861, 984, 1148, 1181, 1230, 1435, 1640, 1680, 1722, 1968, 2296, 2362, 2460, 2870, 3280, 3444, 3543, 4305, 4592, 4724, 4920, 5740, 5905, 6888, 7086, 8267, 8610, 9448, 9840, 11480, 11810, 13776, 14172, 16534, 17220, 17715, 18896, 22960, 23620, 24801, 28344, 33068, 34440, 35430, 41335, 47240, 48421, 49602, 56688, 66136, 68880, 70860, 82670, 94480, 96842, 99204, 124005, 132272, 141720, 145263, 165340, 193684, 198408, 242105, 248010, 283440, 290526, 330680, 338947, 387368, 396816, 484210, 496020, 581052, 661360, 677894, 726315, 774736, 968420, 992040, 1016841, 1162104, 1355788, 1452630, 1694735, 1936840, 1984080, 2033682, 2324208, 2711576, 2905260, 3389470, 3873680, 4067364, 5084205, 5423152, 5810520, 6778940, 8134728, 10168410, 11621040, 13557880, 16269456, 20336820, 27115760, 40673640, 81347280]

約数ペア:

[(1, 81347280), (2, 40673640), (3, 27115760), (4, 20336820), (5, 16269456), (6, 13557880), (7, 11621040), (8, 10168410), (10, 8134728), (12, 6778940), (14, 5810520), (15, 5423152), (16, 5084205), (20, 4067364), (21, 3873680), (24, 3389470), (28, 2905260), (30, 2711576), (35, 2324208), (40, 2033682), (41, 1984080), (42, 1936840), (48, 1694735), (56, 1452630), (60, 1355788), (70, 1162104), (80, 1016841), (82, 992040), (84, 968420), (105, 774736), (112, 726315), (120, 677894), (123, 661360), (140, 581052), (164, 496020), (168, 484210), (205, 396816), (210, 387368), (240, 338947), (246, 330680), (280, 290526), (287, 283440), (328, 248010), (336, 242105), (410, 198408), (420, 193684), (492, 165340), (560, 145263), (574, 141720), (615, 132272), (656, 124005), (820, 99204), (840, 96842), (861, 94480), (984, 82670), (1148, 70860), (1181, 68880), (1230, 66136), (1435, 56688), (1640, 49602), (1680, 48421), (1722, 47240), (1968, 41335), (2296, 35430), (2362, 34440), (2460, 33068), (2870, 28344), (3280, 24801), (3444, 23620), (3543, 22960), (4305, 18896), (4592, 17715), (4724, 17220), (4920, 16534), (5740, 14172), (5905, 13776), (6888, 11810), (7086, 11480), (8267, 9840), (8610, 9448)]