131225640

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{197}}^1$

素因数の和:292

約数の個数: 256

約数和(自身を含む): 494968320

約数和(自身を除く): 363742680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 20, 21, 24, 26, 28, 30, 35, 39, 40, 42, 52, 56, 60, 61, 65, 70, 78, 84, 91, 104, 105, 120, 122, 130, 140, 156, 168, 182, 183, 195, 197, 210, 244, 260, 273, 280, 305, 312, 364, 366, 390, 394, 420, 427, 455, 488, 520, 546, 591, 610, 728, 732, 780, 788, 793, 840, 854, 910, 915, 985, 1092, 1182, 1220, 1281, 1365, 1379, 1464, 1560, 1576, 1586, 1708, 1820, 1830, 1970, 2135, 2184, 2364, 2379, 2440, 2561, 2562, 2730, 2758, 2955, 3172, 3416, 3640, 3660, 3940, 3965, 4137, 4270, 4728, 4758, 5122, 5124, 5460, 5516, 5551, 5910, 6344, 6405, 6895, 7320, 7683, 7880, 7930, 8274, 8540, 9516, 10244, 10248, 10920, 11032, 11102, 11820, 11895, 12017, 12805, 12810, 13790, 15366, 15860, 16548, 16653, 17080, 17927, 19032, 20488, 20685, 22204, 23640, 23790, 24034, 25610, 25620, 27580, 27755, 30732, 31720, 33096, 33306, 35854, 36051, 38415, 41370, 44408, 47580, 48068, 51220, 51240, 53781, 55160, 55510, 60085, 61464, 66612, 71708, 72102, 76830, 82740, 83265, 84119, 89635, 95160, 96136, 102440, 107562, 111020, 120170, 133224, 143416, 144204, 153660, 156221, 165480, 166530, 168238, 179270, 180255, 215124, 222040, 240340, 252357, 268905, 288408, 307320, 312442, 333060, 336476, 358540, 360510, 420595, 430248, 468663, 480680, 504714, 537810, 624884, 666120, 672952, 717080, 721020, 781105, 841190, 937326, 1009428, 1075620, 1093547, 1249768, 1261785, 1442040, 1562210, 1682380, 1874652, 2018856, 2151240, 2187094, 2343315, 2523570, 3124420, 3280641, 3364760, 3749304, 4374188, 4686630, 5047140, 5467735, 6248840, 6561282, 8748376, 9373260, 10094280, 10935470, 13122564, 16403205, 18746520, 21870940, 26245128, 32806410, 43741880, 65612820, 131225640]

約数ペア:

[(1, 131225640), (2, 65612820), (3, 43741880), (4, 32806410), (5, 26245128), (6, 21870940), (7, 18746520), (8, 16403205), (10, 13122564), (12, 10935470), (13, 10094280), (14, 9373260), (15, 8748376), (20, 6561282), (21, 6248840), (24, 5467735), (26, 5047140), (28, 4686630), (30, 4374188), (35, 3749304), (39, 3364760), (40, 3280641), (42, 3124420), (52, 2523570), (56, 2343315), (60, 2187094), (61, 2151240), (65, 2018856), (70, 1874652), (78, 1682380), (84, 1562210), (91, 1442040), (104, 1261785), (105, 1249768), (120, 1093547), (122, 1075620), (130, 1009428), (140, 937326), (156, 841190), (168, 781105), (182, 721020), (183, 717080), (195, 672952), (197, 666120), (210, 624884), (244, 537810), (260, 504714), (273, 480680), (280, 468663), (305, 430248), (312, 420595), (364, 360510), (366, 358540), (390, 336476), (394, 333060), (420, 312442), (427, 307320), (455, 288408), (488, 268905), (520, 252357), (546, 240340), (591, 222040), (610, 215124), (728, 180255), (732, 179270), (780, 168238), (788, 166530), (793, 165480), (840, 156221), (854, 153660), (910, 144204), (915, 143416), (985, 133224), (1092, 120170), (1182, 111020), (1220, 107562), (1281, 102440), (1365, 96136), (1379, 95160), (1464, 89635), (1560, 84119), (1576, 83265), (1586, 82740), (1708, 76830), (1820, 72102), (1830, 71708), (1970, 66612), (2135, 61464), (2184, 60085), (2364, 55510), (2379, 55160), (2440, 53781), (2561, 51240), (2562, 51220), (2730, 48068), (2758, 47580), (2955, 44408), (3172, 41370), (3416, 38415), (3640, 36051), (3660, 35854), (3940, 33306), (3965, 33096), (4137, 31720), (4270, 30732), (4728, 27755), (4758, 27580), (5122, 25620), (5124, 25610), (5460, 24034), (5516, 23790), (5551, 23640), (5910, 22204), (6344, 20685), (6405, 20488), (6895, 19032), (7320, 17927), (7683, 17080), (7880, 16653), (7930, 16548), (8274, 15860), (8540, 15366), (9516, 13790), (10244, 12810), (10248, 12805), (10920, 12017), (11032, 11895), (11102, 11820)]