231391440

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1481}}^1$

素因数の和:1538

約数の個数: 240

約数和(自身を含む): 917369856

約数和(自身を除く): 685978416

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 31, 35, 36, 40, 42, 45, 48, 56, 60, 62, 63, 70, 72, 80, 84, 90, 93, 105, 112, 120, 124, 126, 140, 144, 155, 168, 180, 186, 210, 217, 240, 248, 252, 279, 280, 310, 315, 336, 360, 372, 420, 434, 465, 496, 504, 558, 560, 620, 630, 651, 720, 744, 840, 868, 930, 1008, 1085, 1116, 1240, 1260, 1302, 1395, 1481, 1488, 1680, 1736, 1860, 1953, 2170, 2232, 2480, 2520, 2604, 2790, 2962, 3255, 3472, 3720, 3906, 4340, 4443, 4464, 5040, 5208, 5580, 5924, 6510, 7405, 7440, 7812, 8680, 8886, 9765, 10367, 10416, 11160, 11848, 13020, 13329, 14810, 15624, 17360, 17772, 19530, 20734, 22215, 22320, 23696, 26040, 26658, 29620, 31101, 31248, 35544, 39060, 41468, 44430, 45911, 51835, 52080, 53316, 59240, 62202, 66645, 71088, 78120, 82936, 88860, 91822, 93303, 103670, 106632, 118480, 124404, 133290, 137733, 155505, 156240, 165872, 177720, 183644, 186606, 207340, 213264, 229555, 248808, 266580, 275466, 311010, 321377, 355440, 367288, 373212, 413199, 414680, 459110, 466515, 497616, 533160, 550932, 622020, 642754, 688665, 734576, 746424, 826398, 829360, 918220, 933030, 964131, 1066320, 1101864, 1244040, 1285508, 1377330, 1492848, 1606885, 1652796, 1836440, 1866060, 1928262, 2065995, 2203728, 2488080, 2571016, 2754660, 2892393, 3213770, 3305592, 3672880, 3732120, 3856524, 4131990, 4820655, 5142032, 5509320, 5784786, 6427540, 6611184, 7464240, 7713048, 8263980, 9641310, 11018640, 11569572, 12855080, 14461965, 15426096, 16527960, 19282620, 23139144, 25710160, 28923930, 33055920, 38565240, 46278288, 57847860, 77130480, 115695720, 231391440]

約数ペア:

[(1, 231391440), (2, 115695720), (3, 77130480), (4, 57847860), (5, 46278288), (6, 38565240), (7, 33055920), (8, 28923930), (9, 25710160), (10, 23139144), (12, 19282620), (14, 16527960), (15, 15426096), (16, 14461965), (18, 12855080), (20, 11569572), (21, 11018640), (24, 9641310), (28, 8263980), (30, 7713048), (31, 7464240), (35, 6611184), (36, 6427540), (40, 5784786), (42, 5509320), (45, 5142032), (48, 4820655), (56, 4131990), (60, 3856524), (62, 3732120), (63, 3672880), (70, 3305592), (72, 3213770), (80, 2892393), (84, 2754660), (90, 2571016), (93, 2488080), (105, 2203728), (112, 2065995), (120, 1928262), (124, 1866060), (126, 1836440), (140, 1652796), (144, 1606885), (155, 1492848), (168, 1377330), (180, 1285508), (186, 1244040), (210, 1101864), (217, 1066320), (240, 964131), (248, 933030), (252, 918220), (279, 829360), (280, 826398), (310, 746424), (315, 734576), (336, 688665), (360, 642754), (372, 622020), (420, 550932), (434, 533160), (465, 497616), (496, 466515), (504, 459110), (558, 414680), (560, 413199), (620, 373212), (630, 367288), (651, 355440), (720, 321377), (744, 311010), (840, 275466), (868, 266580), (930, 248808), (1008, 229555), (1085, 213264), (1116, 207340), (1240, 186606), (1260, 183644), (1302, 177720), (1395, 165872), (1481, 156240), (1488, 155505), (1680, 137733), (1736, 133290), (1860, 124404), (1953, 118480), (2170, 106632), (2232, 103670), (2480, 93303), (2520, 91822), (2604, 88860), (2790, 82936), (2962, 78120), (3255, 71088), (3472, 66645), (3720, 62202), (3906, 59240), (4340, 53316), (4443, 52080), (4464, 51835), (5040, 45911), (5208, 44430), (5580, 41468), (5924, 39060), (6510, 35544), (7405, 31248), (7440, 31101), (7812, 29620), (8680, 26658), (8886, 26040), (9765, 23696), (10367, 22320), (10416, 22215), (11160, 20734), (11848, 19530), (13020, 17772), (13329, 17360), (14810, 15624)]