261341080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{107}}^1$

素因数の和:210

約数の個数: 256

約数和(自身を含む): 809948160

約数和(自身を除く): 548607080

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 20, 22, 26, 28, 35, 40, 44, 52, 55, 56, 61, 65, 70, 77, 88, 91, 104, 107, 110, 122, 130, 140, 143, 154, 182, 214, 220, 244, 260, 280, 286, 305, 308, 364, 385, 427, 428, 440, 455, 488, 520, 535, 572, 610, 616, 671, 715, 728, 749, 770, 793, 854, 856, 910, 1001, 1070, 1144, 1177, 1220, 1342, 1391, 1430, 1498, 1540, 1586, 1708, 1820, 2002, 2135, 2140, 2354, 2440, 2684, 2782, 2860, 2996, 3080, 3172, 3355, 3416, 3640, 3745, 3965, 4004, 4270, 4280, 4697, 4708, 5005, 5368, 5551, 5564, 5720, 5885, 5992, 6344, 6527, 6710, 6955, 7490, 7930, 8008, 8239, 8540, 8723, 9394, 9416, 9737, 10010, 11102, 11128, 11770, 13054, 13420, 13910, 14980, 15301, 15860, 16478, 17080, 17446, 18788, 19474, 20020, 22204, 23485, 23540, 26108, 26840, 27755, 27820, 29960, 30602, 31720, 32635, 32956, 34892, 37576, 38948, 40040, 41195, 43615, 44408, 45689, 46970, 47080, 48685, 52216, 55510, 55640, 61061, 61204, 65270, 65912, 69784, 71797, 76505, 77896, 82390, 84851, 87230, 91378, 93940, 97370, 107107, 111020, 122122, 122408, 130540, 143594, 153010, 164780, 169702, 174460, 182756, 187880, 194740, 214214, 222040, 228445, 244244, 261080, 287188, 305305, 306020, 329560, 339404, 348920, 358985, 365512, 389480, 424255, 428428, 456890, 488488, 502579, 535535, 574376, 593957, 610610, 612040, 678808, 717970, 848510, 856856, 913780, 933361, 1005158, 1071070, 1187914, 1221220, 1435940, 1697020, 1827560, 1866722, 2010316, 2142140, 2375828, 2442440, 2512895, 2871880, 2969785, 3394040, 3733444, 4020632, 4284280, 4666805, 4751656, 5025790, 5939570, 6533527, 7466888, 9333610, 10051580, 11879140, 13067054, 18667220, 20103160, 23758280, 26134108, 32667635, 37334440, 52268216, 65335270, 130670540, 261341080]

約数ペア:

[(1, 261341080), (2, 130670540), (4, 65335270), (5, 52268216), (7, 37334440), (8, 32667635), (10, 26134108), (11, 23758280), (13, 20103160), (14, 18667220), (20, 13067054), (22, 11879140), (26, 10051580), (28, 9333610), (35, 7466888), (40, 6533527), (44, 5939570), (52, 5025790), (55, 4751656), (56, 4666805), (61, 4284280), (65, 4020632), (70, 3733444), (77, 3394040), (88, 2969785), (91, 2871880), (104, 2512895), (107, 2442440), (110, 2375828), (122, 2142140), (130, 2010316), (140, 1866722), (143, 1827560), (154, 1697020), (182, 1435940), (214, 1221220), (220, 1187914), (244, 1071070), (260, 1005158), (280, 933361), (286, 913780), (305, 856856), (308, 848510), (364, 717970), (385, 678808), (427, 612040), (428, 610610), (440, 593957), (455, 574376), (488, 535535), (520, 502579), (535, 488488), (572, 456890), (610, 428428), (616, 424255), (671, 389480), (715, 365512), (728, 358985), (749, 348920), (770, 339404), (793, 329560), (854, 306020), (856, 305305), (910, 287188), (1001, 261080), (1070, 244244), (1144, 228445), (1177, 222040), (1220, 214214), (1342, 194740), (1391, 187880), (1430, 182756), (1498, 174460), (1540, 169702), (1586, 164780), (1708, 153010), (1820, 143594), (2002, 130540), (2135, 122408), (2140, 122122), (2354, 111020), (2440, 107107), (2684, 97370), (2782, 93940), (2860, 91378), (2996, 87230), (3080, 84851), (3172, 82390), (3355, 77896), (3416, 76505), (3640, 71797), (3745, 69784), (3965, 65912), (4004, 65270), (4270, 61204), (4280, 61061), (4697, 55640), (4708, 55510), (5005, 52216), (5368, 48685), (5551, 47080), (5564, 46970), (5720, 45689), (5885, 44408), (5992, 43615), (6344, 41195), (6527, 40040), (6710, 38948), (6955, 37576), (7490, 34892), (7930, 32956), (8008, 32635), (8239, 31720), (8540, 30602), (8723, 29960), (9394, 27820), (9416, 27755), (9737, 26840), (10010, 26108), (11102, 23540), (11128, 23485), (11770, 22204), (13054, 20020), (13420, 19474), (13910, 18788), (14980, 17446), (15301, 17080), (15860, 16478)]