311978520

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{1423}}^1$

素因数の和:1479

約数の個数: 256

約数和(自身を含む): 1230336000

約数和(自身を除く): 918357480

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 29, 30, 35, 36, 40, 42, 45, 54, 56, 58, 60, 63, 70, 72, 84, 87, 90, 105, 108, 116, 120, 126, 135, 140, 145, 168, 174, 180, 189, 203, 210, 216, 232, 252, 261, 270, 280, 290, 315, 348, 360, 378, 406, 420, 435, 504, 522, 540, 580, 609, 630, 696, 756, 783, 812, 840, 870, 945, 1015, 1044, 1080, 1160, 1218, 1260, 1305, 1423, 1512, 1566, 1624, 1740, 1827, 1890, 2030, 2088, 2436, 2520, 2610, 2846, 3045, 3132, 3480, 3654, 3780, 3915, 4060, 4269, 4872, 5220, 5481, 5692, 6090, 6264, 7115, 7308, 7560, 7830, 8120, 8538, 9135, 9961, 10440, 10962, 11384, 12180, 12807, 14230, 14616, 15660, 17076, 18270, 19922, 21345, 21924, 24360, 25614, 27405, 28460, 29883, 31320, 34152, 36540, 38421, 39844, 41267, 42690, 43848, 49805, 51228, 54810, 56920, 59766, 64035, 73080, 76842, 79688, 82534, 85380, 89649, 99610, 102456, 109620, 119532, 123801, 128070, 149415, 153684, 165068, 170760, 179298, 192105, 199220, 206335, 219240, 239064, 247602, 256140, 268947, 288869, 298830, 307368, 330136, 358596, 371403, 384210, 398440, 412670, 448245, 495204, 512280, 537894, 577738, 597660, 619005, 717192, 742806, 768420, 825340, 866607, 896490, 990408, 1075788, 1114209, 1155476, 1195320, 1238010, 1344735, 1444345, 1485612, 1536840, 1650680, 1733214, 1792980, 1857015, 2151576, 2228418, 2310952, 2476020, 2599821, 2689470, 2888690, 2971224, 3466428, 3585960, 3714030, 4333035, 4456836, 4952040, 5199642, 5378940, 5571045, 5777380, 6932856, 7428060, 7799463, 8666070, 8913672, 10399284, 10757880, 11142090, 11554760, 12999105, 14856120, 15598926, 17332140, 20798568, 22284180, 25998210, 31197852, 34664280, 38997315, 44568360, 51996420, 62395704, 77994630, 103992840, 155989260, 311978520]

約数ペア:

[(1, 311978520), (2, 155989260), (3, 103992840), (4, 77994630), (5, 62395704), (6, 51996420), (7, 44568360), (8, 38997315), (9, 34664280), (10, 31197852), (12, 25998210), (14, 22284180), (15, 20798568), (18, 17332140), (20, 15598926), (21, 14856120), (24, 12999105), (27, 11554760), (28, 11142090), (29, 10757880), (30, 10399284), (35, 8913672), (36, 8666070), (40, 7799463), (42, 7428060), (45, 6932856), (54, 5777380), (56, 5571045), (58, 5378940), (60, 5199642), (63, 4952040), (70, 4456836), (72, 4333035), (84, 3714030), (87, 3585960), (90, 3466428), (105, 2971224), (108, 2888690), (116, 2689470), (120, 2599821), (126, 2476020), (135, 2310952), (140, 2228418), (145, 2151576), (168, 1857015), (174, 1792980), (180, 1733214), (189, 1650680), (203, 1536840), (210, 1485612), (216, 1444345), (232, 1344735), (252, 1238010), (261, 1195320), (270, 1155476), (280, 1114209), (290, 1075788), (315, 990408), (348, 896490), (360, 866607), (378, 825340), (406, 768420), (420, 742806), (435, 717192), (504, 619005), (522, 597660), (540, 577738), (580, 537894), (609, 512280), (630, 495204), (696, 448245), (756, 412670), (783, 398440), (812, 384210), (840, 371403), (870, 358596), (945, 330136), (1015, 307368), (1044, 298830), (1080, 288869), (1160, 268947), (1218, 256140), (1260, 247602), (1305, 239064), (1423, 219240), (1512, 206335), (1566, 199220), (1624, 192105), (1740, 179298), (1827, 170760), (1890, 165068), (2030, 153684), (2088, 149415), (2436, 128070), (2520, 123801), (2610, 119532), (2846, 109620), (3045, 102456), (3132, 99610), (3480, 89649), (3654, 85380), (3780, 82534), (3915, 79688), (4060, 76842), (4269, 73080), (4872, 64035), (5220, 59766), (5481, 56920), (5692, 54810), (6090, 51228), (6264, 49805), (7115, 43848), (7308, 42690), (7560, 41267), (7830, 39844), (8120, 38421), (8538, 36540), (9135, 34152), (9961, 31320), (10440, 29883), (10962, 28460), (11384, 27405), (12180, 25614), (12807, 24360), (14230, 21924), (14616, 21345), (15660, 19922), (17076, 18270)]