256450320

素因数分解:

$2^4\times 3^3\times 5^1\times 7^2\times {\mathrm{2423}}^1$

素因数の和:2459

約数の個数: 240

約数和(自身を含む): 1027969920

約数和(自身を除く): 771519600

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 48, 49, 54, 56, 60, 63, 70, 72, 80, 84, 90, 98, 105, 108, 112, 120, 126, 135, 140, 144, 147, 168, 180, 189, 196, 210, 216, 240, 245, 252, 270, 280, 294, 315, 336, 360, 378, 392, 420, 432, 441, 490, 504, 540, 560, 588, 630, 720, 735, 756, 784, 840, 882, 945, 980, 1008, 1080, 1176, 1260, 1323, 1470, 1512, 1680, 1764, 1890, 1960, 2160, 2205, 2352, 2423, 2520, 2646, 2940, 3024, 3528, 3780, 3920, 4410, 4846, 5040, 5292, 5880, 6615, 7056, 7269, 7560, 8820, 9692, 10584, 11760, 12115, 13230, 14538, 15120, 16961, 17640, 19384, 21168, 21807, 24230, 26460, 29076, 33922, 35280, 36345, 38768, 43614, 48460, 50883, 52920, 58152, 65421, 67844, 72690, 84805, 87228, 96920, 101766, 105840, 109035, 116304, 118727, 130842, 135688, 145380, 152649, 169610, 174456, 193840, 203532, 218070, 237454, 254415, 261684, 271376, 290760, 305298, 327105, 339220, 348912, 356181, 407064, 436140, 457947, 474908, 508830, 523368, 581520, 593635, 610596, 654210, 678440, 712362, 763245, 814128, 872280, 915894, 949816, 1017660, 1046736, 1068543, 1187270, 1221192, 1308420, 1356880, 1424724, 1526490, 1744560, 1780905, 1831788, 1899632, 2035320, 2137086, 2289735, 2374540, 2442384, 2616840, 2849448, 3052980, 3205629, 3561810, 3663576, 4070640, 4274172, 4579470, 4749080, 5233680, 5342715, 5698896, 6105960, 6411258, 7123620, 7327152, 8548344, 9158940, 9498160, 10685430, 12211920, 12822516, 14247240, 16028145, 17096688, 18317880, 21370860, 25645032, 28494480, 32056290, 36635760, 42741720, 51290064, 64112580, 85483440, 128225160, 256450320]

約数ペア:

[(1, 256450320), (2, 128225160), (3, 85483440), (4, 64112580), (5, 51290064), (6, 42741720), (7, 36635760), (8, 32056290), (9, 28494480), (10, 25645032), (12, 21370860), (14, 18317880), (15, 17096688), (16, 16028145), (18, 14247240), (20, 12822516), (21, 12211920), (24, 10685430), (27, 9498160), (28, 9158940), (30, 8548344), (35, 7327152), (36, 7123620), (40, 6411258), (42, 6105960), (45, 5698896), (48, 5342715), (49, 5233680), (54, 4749080), (56, 4579470), (60, 4274172), (63, 4070640), (70, 3663576), (72, 3561810), (80, 3205629), (84, 3052980), (90, 2849448), (98, 2616840), (105, 2442384), (108, 2374540), (112, 2289735), (120, 2137086), (126, 2035320), (135, 1899632), (140, 1831788), (144, 1780905), (147, 1744560), (168, 1526490), (180, 1424724), (189, 1356880), (196, 1308420), (210, 1221192), (216, 1187270), (240, 1068543), (245, 1046736), (252, 1017660), (270, 949816), (280, 915894), (294, 872280), (315, 814128), (336, 763245), (360, 712362), (378, 678440), (392, 654210), (420, 610596), (432, 593635), (441, 581520), (490, 523368), (504, 508830), (540, 474908), (560, 457947), (588, 436140), (630, 407064), (720, 356181), (735, 348912), (756, 339220), (784, 327105), (840, 305298), (882, 290760), (945, 271376), (980, 261684), (1008, 254415), (1080, 237454), (1176, 218070), (1260, 203532), (1323, 193840), (1470, 174456), (1512, 169610), (1680, 152649), (1764, 145380), (1890, 135688), (1960, 130842), (2160, 118727), (2205, 116304), (2352, 109035), (2423, 105840), (2520, 101766), (2646, 96920), (2940, 87228), (3024, 84805), (3528, 72690), (3780, 67844), (3920, 65421), (4410, 58152), (4846, 52920), (5040, 50883), (5292, 48460), (5880, 43614), (6615, 38768), (7056, 36345), (7269, 35280), (7560, 33922), (8820, 29076), (9692, 26460), (10584, 24230), (11760, 21807), (12115, 21168), (13230, 19384), (14538, 17640), (15120, 16961)]