1338821120

素因数分解:

$2^9\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{821}}^1$

素因数の和:871

約数の個数: 240

約数和(自身を含む): 4026257928

約数和(自身を除く): 2687436808

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 49, 52, 56, 64, 65, 70, 80, 91, 98, 104, 112, 128, 130, 140, 160, 182, 196, 208, 224, 245, 256, 260, 280, 320, 364, 392, 416, 448, 455, 490, 512, 520, 560, 637, 640, 728, 784, 821, 832, 896, 910, 980, 1040, 1120, 1274, 1280, 1456, 1568, 1642, 1664, 1792, 1820, 1960, 2080, 2240, 2548, 2560, 2912, 3136, 3185, 3284, 3328, 3584, 3640, 3920, 4105, 4160, 4480, 5096, 5747, 5824, 6272, 6370, 6568, 6656, 7280, 7840, 8210, 8320, 8960, 10192, 10673, 11494, 11648, 12544, 12740, 13136, 14560, 15680, 16420, 16640, 17920, 20384, 21346, 22988, 23296, 25088, 25480, 26272, 28735, 29120, 31360, 32840, 33280, 40229, 40768, 42692, 45976, 46592, 50960, 52544, 53365, 57470, 58240, 62720, 65680, 74711, 80458, 81536, 85384, 91952, 101920, 105088, 106730, 114940, 116480, 125440, 131360, 149422, 160916, 163072, 170768, 183904, 201145, 203840, 210176, 213460, 229880, 232960, 262720, 298844, 321832, 326144, 341536, 367808, 373555, 402290, 407680, 420352, 426920, 459760, 522977, 525440, 597688, 643664, 683072, 735616, 747110, 804580, 815360, 853840, 919520, 1045954, 1050880, 1195376, 1287328, 1366144, 1471232, 1494220, 1609160, 1630720, 1707680, 1839040, 2091908, 2101760, 2390752, 2574656, 2614885, 2732288, 2942464, 2988440, 3218320, 3415360, 3678080, 4183816, 4781504, 5149312, 5229770, 5464576, 5976880, 6436640, 6830720, 7356160, 8367632, 9563008, 10298624, 10459540, 11953760, 12873280, 13661440, 14712320, 16735264, 19126016, 20597248, 20919080, 23907520, 25746560, 27322880, 33470528, 38252032, 41838160, 47815040, 51493120, 66941056, 83676320, 95630080, 102986240, 133882112, 167352640, 191260160, 267764224, 334705280, 669410560, 1338821120]

約数ペア:

[(1, 1338821120), (2, 669410560), (4, 334705280), (5, 267764224), (7, 191260160), (8, 167352640), (10, 133882112), (13, 102986240), (14, 95630080), (16, 83676320), (20, 66941056), (26, 51493120), (28, 47815040), (32, 41838160), (35, 38252032), (40, 33470528), (49, 27322880), (52, 25746560), (56, 23907520), (64, 20919080), (65, 20597248), (70, 19126016), (80, 16735264), (91, 14712320), (98, 13661440), (104, 12873280), (112, 11953760), (128, 10459540), (130, 10298624), (140, 9563008), (160, 8367632), (182, 7356160), (196, 6830720), (208, 6436640), (224, 5976880), (245, 5464576), (256, 5229770), (260, 5149312), (280, 4781504), (320, 4183816), (364, 3678080), (392, 3415360), (416, 3218320), (448, 2988440), (455, 2942464), (490, 2732288), (512, 2614885), (520, 2574656), (560, 2390752), (637, 2101760), (640, 2091908), (728, 1839040), (784, 1707680), (821, 1630720), (832, 1609160), (896, 1494220), (910, 1471232), (980, 1366144), (1040, 1287328), (1120, 1195376), (1274, 1050880), (1280, 1045954), (1456, 919520), (1568, 853840), (1642, 815360), (1664, 804580), (1792, 747110), (1820, 735616), (1960, 683072), (2080, 643664), (2240, 597688), (2548, 525440), (2560, 522977), (2912, 459760), (3136, 426920), (3185, 420352), (3284, 407680), (3328, 402290), (3584, 373555), (3640, 367808), (3920, 341536), (4105, 326144), (4160, 321832), (4480, 298844), (5096, 262720), (5747, 232960), (5824, 229880), (6272, 213460), (6370, 210176), (6568, 203840), (6656, 201145), (7280, 183904), (7840, 170768), (8210, 163072), (8320, 160916), (8960, 149422), (10192, 131360), (10673, 125440), (11494, 116480), (11648, 114940), (12544, 106730), (12740, 105088), (13136, 101920), (14560, 91952), (15680, 85384), (16420, 81536), (16640, 80458), (17920, 74711), (20384, 65680), (21346, 62720), (22988, 58240), (23296, 57470), (25088, 53365), (25480, 52544), (26272, 50960), (28735, 46592), (29120, 45976), (31360, 42692), (32840, 40768), (33280, 40229)]