638754480

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{9749}}^1$

素因数の和:9788

約数の個数: 240

約数和(自身を含む): 2640456000

約数和(自身を除く): 2001701520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 16, 18, 20, 21, 24, 26, 28, 30, 35, 36, 39, 40, 42, 45, 48, 52, 56, 60, 63, 65, 70, 72, 78, 80, 84, 90, 91, 104, 105, 112, 117, 120, 126, 130, 140, 144, 156, 168, 180, 182, 195, 208, 210, 234, 240, 252, 260, 273, 280, 312, 315, 336, 360, 364, 390, 420, 455, 468, 504, 520, 546, 560, 585, 624, 630, 720, 728, 780, 819, 840, 910, 936, 1008, 1040, 1092, 1170, 1260, 1365, 1456, 1560, 1638, 1680, 1820, 1872, 2184, 2340, 2520, 2730, 3120, 3276, 3640, 4095, 4368, 4680, 5040, 5460, 6552, 7280, 8190, 9360, 9749, 10920, 13104, 16380, 19498, 21840, 29247, 32760, 38996, 48745, 58494, 65520, 68243, 77992, 87741, 97490, 116988, 126737, 136486, 146235, 155984, 175482, 194980, 204729, 233976, 253474, 272972, 292470, 341215, 350964, 380211, 389960, 409458, 438705, 467952, 506948, 545944, 584940, 614187, 633685, 682430, 701928, 760422, 779920, 818916, 877410, 887159, 1013896, 1023645, 1091888, 1140633, 1169880, 1228374, 1267370, 1364860, 1403856, 1520844, 1637832, 1754820, 1774318, 1901055, 2027792, 2047290, 2281266, 2339760, 2456748, 2534740, 2661477, 2729720, 3041688, 3070935, 3275664, 3509640, 3548636, 3802110, 4094580, 4435795, 4562532, 4913496, 5069480, 5322954, 5459440, 5703165, 6083376, 6141870, 7019280, 7097272, 7604220, 7984431, 8189160, 8871590, 9125064, 9826992, 10138960, 10645908, 11406330, 12283740, 13307385, 14194544, 15208440, 15968862, 16378320, 17743180, 18250128, 21291816, 22812660, 24567480, 26614770, 30416880, 31937724, 35486360, 39922155, 42583632, 45625320, 49134960, 53229540, 63875448, 70972720, 79844310, 91250640, 106459080, 127750896, 159688620, 212918160, 319377240, 638754480]

約数ペア:

[(1, 638754480), (2, 319377240), (3, 212918160), (4, 159688620), (5, 127750896), (6, 106459080), (7, 91250640), (8, 79844310), (9, 70972720), (10, 63875448), (12, 53229540), (13, 49134960), (14, 45625320), (15, 42583632), (16, 39922155), (18, 35486360), (20, 31937724), (21, 30416880), (24, 26614770), (26, 24567480), (28, 22812660), (30, 21291816), (35, 18250128), (36, 17743180), (39, 16378320), (40, 15968862), (42, 15208440), (45, 14194544), (48, 13307385), (52, 12283740), (56, 11406330), (60, 10645908), (63, 10138960), (65, 9826992), (70, 9125064), (72, 8871590), (78, 8189160), (80, 7984431), (84, 7604220), (90, 7097272), (91, 7019280), (104, 6141870), (105, 6083376), (112, 5703165), (117, 5459440), (120, 5322954), (126, 5069480), (130, 4913496), (140, 4562532), (144, 4435795), (156, 4094580), (168, 3802110), (180, 3548636), (182, 3509640), (195, 3275664), (208, 3070935), (210, 3041688), (234, 2729720), (240, 2661477), (252, 2534740), (260, 2456748), (273, 2339760), (280, 2281266), (312, 2047290), (315, 2027792), (336, 1901055), (360, 1774318), (364, 1754820), (390, 1637832), (420, 1520844), (455, 1403856), (468, 1364860), (504, 1267370), (520, 1228374), (546, 1169880), (560, 1140633), (585, 1091888), (624, 1023645), (630, 1013896), (720, 887159), (728, 877410), (780, 818916), (819, 779920), (840, 760422), (910, 701928), (936, 682430), (1008, 633685), (1040, 614187), (1092, 584940), (1170, 545944), (1260, 506948), (1365, 467952), (1456, 438705), (1560, 409458), (1638, 389960), (1680, 380211), (1820, 350964), (1872, 341215), (2184, 292470), (2340, 272972), (2520, 253474), (2730, 233976), (3120, 204729), (3276, 194980), (3640, 175482), (4095, 155984), (4368, 146235), (4680, 136486), (5040, 126737), (5460, 116988), (6552, 97490), (7280, 87741), (8190, 77992), (9360, 68243), (9749, 65520), (10920, 58494), (13104, 48745), (16380, 38996), (19498, 32760), (21840, 29247)]