1991568960

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{22307}}^1$

素因数の和:22361

約数の個数: 168

約数和(自身を含む): 7071457536

約数和(自身を除く): 5079888576

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 31, 32, 36, 40, 45, 48, 60, 62, 64, 72, 80, 90, 93, 96, 120, 124, 144, 155, 160, 180, 186, 192, 240, 248, 279, 288, 310, 320, 360, 372, 465, 480, 496, 558, 576, 620, 720, 744, 930, 960, 992, 1116, 1240, 1395, 1440, 1488, 1860, 1984, 2232, 2480, 2790, 2880, 2976, 3720, 4464, 4960, 5580, 5952, 7440, 8928, 9920, 11160, 14880, 17856, 22307, 22320, 29760, 44614, 44640, 66921, 89228, 89280, 111535, 133842, 178456, 200763, 223070, 267684, 334605, 356912, 401526, 446140, 535368, 669210, 691517, 713824, 803052, 892280, 1003815, 1070736, 1338420, 1383034, 1427648, 1606104, 1784560, 2007630, 2074551, 2141472, 2676840, 2766068, 3212208, 3457585, 3569120, 4015260, 4149102, 4282944, 5353680, 5532136, 6223653, 6424416, 6915170, 7138240, 8030520, 8298204, 10372755, 10707360, 11064272, 12447306, 12848832, 13830340, 16061040, 16596408, 20745510, 21414720, 22128544, 24894612, 27660680, 31118265, 32122080, 33192816, 41491020, 44257088, 49789224, 55321360, 62236530, 64244160, 66385632, 82982040, 99578448, 110642720, 124473060, 132771264, 165964080, 199156896, 221285440, 248946120, 331928160, 398313792, 497892240, 663856320, 995784480, 1991568960]

約数ペア:

[(1, 1991568960), (2, 995784480), (3, 663856320), (4, 497892240), (5, 398313792), (6, 331928160), (8, 248946120), (9, 221285440), (10, 199156896), (12, 165964080), (15, 132771264), (16, 124473060), (18, 110642720), (20, 99578448), (24, 82982040), (30, 66385632), (31, 64244160), (32, 62236530), (36, 55321360), (40, 49789224), (45, 44257088), (48, 41491020), (60, 33192816), (62, 32122080), (64, 31118265), (72, 27660680), (80, 24894612), (90, 22128544), (93, 21414720), (96, 20745510), (120, 16596408), (124, 16061040), (144, 13830340), (155, 12848832), (160, 12447306), (180, 11064272), (186, 10707360), (192, 10372755), (240, 8298204), (248, 8030520), (279, 7138240), (288, 6915170), (310, 6424416), (320, 6223653), (360, 5532136), (372, 5353680), (465, 4282944), (480, 4149102), (496, 4015260), (558, 3569120), (576, 3457585), (620, 3212208), (720, 2766068), (744, 2676840), (930, 2141472), (960, 2074551), (992, 2007630), (1116, 1784560), (1240, 1606104), (1395, 1427648), (1440, 1383034), (1488, 1338420), (1860, 1070736), (1984, 1003815), (2232, 892280), (2480, 803052), (2790, 713824), (2880, 691517), (2976, 669210), (3720, 535368), (4464, 446140), (4960, 401526), (5580, 356912), (5952, 334605), (7440, 267684), (8928, 223070), (9920, 200763), (11160, 178456), (14880, 133842), (17856, 111535), (22307, 89280), (22320, 89228), (29760, 66921), (44614, 44640)]