991370880

素因数分解:

$2^7\times 3^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{557}}^1$

素因数の和:688

約数の個数: 256

約数和(自身を含む): 3551558400

約数和(自身を除く): 2560187520

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 90, 96, 103, 108, 120, 128, 135, 144, 160, 180, 192, 206, 216, 240, 270, 288, 309, 320, 360, 384, 412, 432, 480, 515, 540, 557, 576, 618, 640, 720, 824, 864, 927, 960, 1030, 1080, 1114, 1152, 1236, 1440, 1545, 1648, 1671, 1728, 1854, 1920, 2060, 2160, 2228, 2472, 2781, 2785, 2880, 3090, 3296, 3342, 3456, 3708, 4120, 4320, 4456, 4635, 4944, 5013, 5562, 5570, 5760, 6180, 6592, 6684, 7416, 8240, 8355, 8640, 8912, 9270, 9888, 10026, 11124, 11140, 12360, 13184, 13368, 13905, 14832, 15039, 16480, 16710, 17280, 17824, 18540, 19776, 20052, 22248, 22280, 24720, 25065, 26736, 27810, 29664, 30078, 32960, 33420, 35648, 37080, 39552, 40104, 44496, 44560, 49440, 50130, 53472, 55620, 57371, 59328, 60156, 65920, 66840, 71296, 74160, 75195, 80208, 88992, 89120, 98880, 100260, 106944, 111240, 114742, 118656, 120312, 133680, 148320, 150390, 160416, 172113, 177984, 178240, 197760, 200520, 213888, 222480, 229484, 240624, 267360, 286855, 296640, 300780, 320832, 344226, 355968, 356480, 401040, 444960, 458968, 481248, 516339, 534720, 573710, 593280, 601560, 641664, 688452, 802080, 860565, 889920, 917936, 962496, 1032678, 1069440, 1147420, 1203120, 1376904, 1549017, 1604160, 1721130, 1779840, 1835872, 1924992, 2065356, 2294840, 2406240, 2581695, 2753808, 3098034, 3208320, 3442260, 3671744, 4130712, 4589680, 4812480, 5163390, 5507616, 6196068, 6884520, 7343488, 7745085, 8261424, 9179360, 9624960, 10326780, 11015232, 12392136, 13769040, 15490170, 16522848, 18358720, 20653560, 22030464, 24784272, 27538080, 30980340, 33045696, 36717440, 41307120, 49568544, 55076160, 61960680, 66091392, 82614240, 99137088, 110152320, 123921360, 165228480, 198274176, 247842720, 330456960, 495685440, 991370880]

約数ペア:

[(1, 991370880), (2, 495685440), (3, 330456960), (4, 247842720), (5, 198274176), (6, 165228480), (8, 123921360), (9, 110152320), (10, 99137088), (12, 82614240), (15, 66091392), (16, 61960680), (18, 55076160), (20, 49568544), (24, 41307120), (27, 36717440), (30, 33045696), (32, 30980340), (36, 27538080), (40, 24784272), (45, 22030464), (48, 20653560), (54, 18358720), (60, 16522848), (64, 15490170), (72, 13769040), (80, 12392136), (90, 11015232), (96, 10326780), (103, 9624960), (108, 9179360), (120, 8261424), (128, 7745085), (135, 7343488), (144, 6884520), (160, 6196068), (180, 5507616), (192, 5163390), (206, 4812480), (216, 4589680), (240, 4130712), (270, 3671744), (288, 3442260), (309, 3208320), (320, 3098034), (360, 2753808), (384, 2581695), (412, 2406240), (432, 2294840), (480, 2065356), (515, 1924992), (540, 1835872), (557, 1779840), (576, 1721130), (618, 1604160), (640, 1549017), (720, 1376904), (824, 1203120), (864, 1147420), (927, 1069440), (960, 1032678), (1030, 962496), (1080, 917936), (1114, 889920), (1152, 860565), (1236, 802080), (1440, 688452), (1545, 641664), (1648, 601560), (1671, 593280), (1728, 573710), (1854, 534720), (1920, 516339), (2060, 481248), (2160, 458968), (2228, 444960), (2472, 401040), (2781, 356480), (2785, 355968), (2880, 344226), (3090, 320832), (3296, 300780), (3342, 296640), (3456, 286855), (3708, 267360), (4120, 240624), (4320, 229484), (4456, 222480), (4635, 213888), (4944, 200520), (5013, 197760), (5562, 178240), (5570, 177984), (5760, 172113), (6180, 160416), (6592, 150390), (6684, 148320), (7416, 133680), (8240, 120312), (8355, 118656), (8640, 114742), (8912, 111240), (9270, 106944), (9888, 100260), (10026, 98880), (11124, 89120), (11140, 88992), (12360, 80208), (13184, 75195), (13368, 74160), (13905, 71296), (14832, 66840), (15039, 65920), (16480, 60156), (16710, 59328), (17280, 57371), (17824, 55620), (18540, 53472), (19776, 50130), (20052, 49440), (22248, 44560), (22280, 44496), (24720, 40104), (25065, 39552), (26736, 37080), (27810, 35648), (29664, 33420), (30078, 32960)]