257176920

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2141}}^1$

素因数の和:2186

約数の個数: 256

約数和(自身を含む): 1036385280

約数和(自身を除く): 779208360

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 13, 14, 15, 20, 21, 22, 24, 26, 28, 30, 33, 35, 39, 40, 42, 44, 52, 55, 56, 60, 65, 66, 70, 77, 78, 84, 88, 91, 104, 105, 110, 120, 130, 132, 140, 143, 154, 156, 165, 168, 182, 195, 210, 220, 231, 260, 264, 273, 280, 286, 308, 312, 330, 364, 385, 390, 420, 429, 440, 455, 462, 520, 546, 572, 616, 660, 715, 728, 770, 780, 840, 858, 910, 924, 1001, 1092, 1144, 1155, 1320, 1365, 1430, 1540, 1560, 1716, 1820, 1848, 2002, 2141, 2145, 2184, 2310, 2730, 2860, 3003, 3080, 3432, 3640, 4004, 4282, 4290, 4620, 5005, 5460, 5720, 6006, 6423, 8008, 8564, 8580, 9240, 10010, 10705, 10920, 12012, 12846, 14987, 15015, 17128, 17160, 20020, 21410, 23551, 24024, 25692, 27833, 29974, 30030, 32115, 40040, 42820, 44961, 47102, 51384, 55666, 59948, 60060, 64230, 70653, 74935, 83499, 85640, 89922, 94204, 111332, 117755, 119896, 120120, 128460, 139165, 141306, 149870, 164857, 166998, 179844, 188408, 194831, 222664, 224805, 235510, 256920, 278330, 282612, 299740, 306163, 329714, 333996, 353265, 359688, 389662, 417495, 449610, 471020, 494571, 556660, 565224, 584493, 599480, 612326, 659428, 667992, 706530, 779324, 824285, 834990, 899220, 918489, 942040, 974155, 989142, 1113320, 1168986, 1224652, 1318856, 1413060, 1530815, 1558648, 1648570, 1669980, 1798440, 1836978, 1948310, 1978284, 2143141, 2337972, 2449304, 2472855, 2826120, 2922465, 3061630, 3297140, 3339960, 3673956, 3896620, 3956568, 4286282, 4592445, 4675944, 4945710, 5844930, 6123260, 6429423, 6594280, 7347912, 7793240, 8572564, 9184890, 9891420, 10715705, 11689860, 12246520, 12858846, 17145128, 18369780, 19782840, 21431410, 23379720, 25717692, 32147115, 36739560, 42862820, 51435384, 64294230, 85725640, 128588460, 257176920]

約数ペア:

[(1, 257176920), (2, 128588460), (3, 85725640), (4, 64294230), (5, 51435384), (6, 42862820), (7, 36739560), (8, 32147115), (10, 25717692), (11, 23379720), (12, 21431410), (13, 19782840), (14, 18369780), (15, 17145128), (20, 12858846), (21, 12246520), (22, 11689860), (24, 10715705), (26, 9891420), (28, 9184890), (30, 8572564), (33, 7793240), (35, 7347912), (39, 6594280), (40, 6429423), (42, 6123260), (44, 5844930), (52, 4945710), (55, 4675944), (56, 4592445), (60, 4286282), (65, 3956568), (66, 3896620), (70, 3673956), (77, 3339960), (78, 3297140), (84, 3061630), (88, 2922465), (91, 2826120), (104, 2472855), (105, 2449304), (110, 2337972), (120, 2143141), (130, 1978284), (132, 1948310), (140, 1836978), (143, 1798440), (154, 1669980), (156, 1648570), (165, 1558648), (168, 1530815), (182, 1413060), (195, 1318856), (210, 1224652), (220, 1168986), (231, 1113320), (260, 989142), (264, 974155), (273, 942040), (280, 918489), (286, 899220), (308, 834990), (312, 824285), (330, 779324), (364, 706530), (385, 667992), (390, 659428), (420, 612326), (429, 599480), (440, 584493), (455, 565224), (462, 556660), (520, 494571), (546, 471020), (572, 449610), (616, 417495), (660, 389662), (715, 359688), (728, 353265), (770, 333996), (780, 329714), (840, 306163), (858, 299740), (910, 282612), (924, 278330), (1001, 256920), (1092, 235510), (1144, 224805), (1155, 222664), (1320, 194831), (1365, 188408), (1430, 179844), (1540, 166998), (1560, 164857), (1716, 149870), (1820, 141306), (1848, 139165), (2002, 128460), (2141, 120120), (2145, 119896), (2184, 117755), (2310, 111332), (2730, 94204), (2860, 89922), (3003, 85640), (3080, 83499), (3432, 74935), (3640, 70653), (4004, 64230), (4282, 60060), (4290, 59948), (4620, 55666), (5005, 51384), (5460, 47102), (5720, 44961), (6006, 42820), (6423, 40040), (8008, 32115), (8564, 30030), (8580, 29974), (9240, 27833), (10010, 25692), (10705, 24024), (10920, 23551), (12012, 21410), (12846, 20020), (14987, 17160), (15015, 17128)]