1280922000

素因数分解:

$2^4\times 3^1\times 5^3\times {\mathrm{41}}^2\times {\mathrm{127}}^1$

素因数の和:235

約数の個数: 240

約数和(自身を含む): 4266203136

約数和(自身を除く): 2985281136

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 40, 41, 48, 50, 60, 75, 80, 82, 100, 120, 123, 125, 127, 150, 164, 200, 205, 240, 246, 250, 254, 300, 328, 375, 381, 400, 410, 492, 500, 508, 600, 615, 635, 656, 750, 762, 820, 984, 1000, 1016, 1025, 1200, 1230, 1270, 1500, 1524, 1640, 1681, 1905, 1968, 2000, 2032, 2050, 2460, 2540, 3000, 3048, 3075, 3175, 3280, 3362, 3810, 4100, 4920, 5043, 5080, 5125, 5207, 6000, 6096, 6150, 6350, 6724, 7620, 8200, 8405, 9525, 9840, 10086, 10160, 10250, 10414, 12300, 12700, 13448, 15240, 15375, 15621, 15875, 16400, 16810, 19050, 20172, 20500, 20828, 24600, 25215, 25400, 26035, 26896, 30480, 30750, 31242, 31750, 33620, 38100, 40344, 41000, 41656, 42025, 47625, 49200, 50430, 50800, 52070, 61500, 62484, 63500, 67240, 76200, 78105, 80688, 82000, 83312, 84050, 95250, 100860, 104140, 123000, 124968, 126075, 127000, 130175, 134480, 152400, 156210, 168100, 190500, 201720, 208280, 210125, 213487, 246000, 249936, 252150, 254000, 260350, 312420, 336200, 381000, 390525, 403440, 416560, 420250, 426974, 504300, 520700, 624840, 630375, 640461, 650875, 672400, 762000, 781050, 840500, 853948, 1008600, 1041400, 1067435, 1249680, 1260750, 1280922, 1301750, 1562100, 1681000, 1707896, 1952625, 2017200, 2082800, 2134870, 2521500, 2561844, 2603500, 3124200, 3202305, 3362000, 3415792, 3905250, 4269740, 5043000, 5123688, 5207000, 5337175, 6248400, 6404610, 7810500, 8539480, 10086000, 10247376, 10414000, 10674350, 12809220, 15621000, 16011525, 17078960, 21348700, 25618440, 26685875, 31242000, 32023050, 42697400, 51236880, 53371750, 64046100, 80057625, 85394800, 106743500, 128092200, 160115250, 213487000, 256184400, 320230500, 426974000, 640461000, 1280922000]

約数ペア:

[(1, 1280922000), (2, 640461000), (3, 426974000), (4, 320230500), (5, 256184400), (6, 213487000), (8, 160115250), (10, 128092200), (12, 106743500), (15, 85394800), (16, 80057625), (20, 64046100), (24, 53371750), (25, 51236880), (30, 42697400), (40, 32023050), (41, 31242000), (48, 26685875), (50, 25618440), (60, 21348700), (75, 17078960), (80, 16011525), (82, 15621000), (100, 12809220), (120, 10674350), (123, 10414000), (125, 10247376), (127, 10086000), (150, 8539480), (164, 7810500), (200, 6404610), (205, 6248400), (240, 5337175), (246, 5207000), (250, 5123688), (254, 5043000), (300, 4269740), (328, 3905250), (375, 3415792), (381, 3362000), (400, 3202305), (410, 3124200), (492, 2603500), (500, 2561844), (508, 2521500), (600, 2134870), (615, 2082800), (635, 2017200), (656, 1952625), (750, 1707896), (762, 1681000), (820, 1562100), (984, 1301750), (1000, 1280922), (1016, 1260750), (1025, 1249680), (1200, 1067435), (1230, 1041400), (1270, 1008600), (1500, 853948), (1524, 840500), (1640, 781050), (1681, 762000), (1905, 672400), (1968, 650875), (2000, 640461), (2032, 630375), (2050, 624840), (2460, 520700), (2540, 504300), (3000, 426974), (3048, 420250), (3075, 416560), (3175, 403440), (3280, 390525), (3362, 381000), (3810, 336200), (4100, 312420), (4920, 260350), (5043, 254000), (5080, 252150), (5125, 249936), (5207, 246000), (6000, 213487), (6096, 210125), (6150, 208280), (6350, 201720), (6724, 190500), (7620, 168100), (8200, 156210), (8405, 152400), (9525, 134480), (9840, 130175), (10086, 127000), (10160, 126075), (10250, 124968), (10414, 123000), (12300, 104140), (12700, 100860), (13448, 95250), (15240, 84050), (15375, 83312), (15621, 82000), (15875, 80688), (16400, 78105), (16810, 76200), (19050, 67240), (20172, 63500), (20500, 62484), (20828, 61500), (24600, 52070), (25215, 50800), (25400, 50430), (26035, 49200), (26896, 47625), (30480, 42025), (30750, 41656), (31242, 41000), (31750, 40344), (33620, 38100)]