257081760

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{443}}^1$

素因数の和:508

約数の個数: 288

約数和(自身を含む): 977453568

約数和(自身を除く): 720371808

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 31, 32, 36, 39, 40, 45, 48, 52, 60, 62, 65, 72, 78, 80, 90, 93, 96, 104, 117, 120, 124, 130, 144, 155, 156, 160, 180, 186, 195, 208, 234, 240, 248, 260, 279, 288, 310, 312, 360, 372, 390, 403, 416, 443, 465, 468, 480, 496, 520, 558, 585, 620, 624, 720, 744, 780, 806, 886, 930, 936, 992, 1040, 1116, 1170, 1209, 1240, 1248, 1329, 1395, 1440, 1488, 1560, 1612, 1772, 1860, 1872, 2015, 2080, 2215, 2232, 2340, 2418, 2480, 2658, 2790, 2976, 3120, 3224, 3544, 3627, 3720, 3744, 3987, 4030, 4430, 4464, 4680, 4836, 4960, 5316, 5580, 5759, 6045, 6240, 6448, 6645, 7088, 7254, 7440, 7974, 8060, 8860, 8928, 9360, 9672, 10632, 11160, 11518, 12090, 12896, 13290, 13733, 14176, 14508, 14880, 15948, 16120, 17277, 17720, 18135, 18720, 19344, 19935, 21264, 22320, 23036, 24180, 26580, 27466, 28795, 29016, 31896, 32240, 34554, 35440, 36270, 38688, 39870, 41199, 42528, 44640, 46072, 48360, 51831, 53160, 54932, 57590, 58032, 63792, 64480, 68665, 69108, 70880, 72540, 79740, 82398, 86385, 92144, 96720, 103662, 106320, 109864, 115180, 116064, 123597, 127584, 137330, 138216, 145080, 159480, 164796, 172770, 178529, 184288, 193440, 205995, 207324, 212640, 219728, 230360, 247194, 259155, 274660, 276432, 290160, 318960, 329592, 345540, 357058, 411990, 414648, 439456, 460720, 494388, 518310, 535587, 549320, 552864, 580320, 617985, 637920, 659184, 691080, 714116, 823980, 829296, 892645, 921440, 988776, 1036620, 1071174, 1098640, 1235970, 1318368, 1382160, 1428232, 1606761, 1647960, 1658592, 1785290, 1977552, 2073240, 2142348, 2197280, 2471940, 2677935, 2764320, 2856464, 3213522, 3295920, 3570580, 3955104, 4146480, 4284696, 4943880, 5355870, 5712928, 6427044, 6591840, 7141160, 8033805, 8292960, 8569392, 9887760, 10711740, 12854088, 14282320, 16067610, 17138784, 19775520, 21423480, 25708176, 28564640, 32135220, 42846960, 51416352, 64270440, 85693920, 128540880, 257081760]

約数ペア:

[(1, 257081760), (2, 128540880), (3, 85693920), (4, 64270440), (5, 51416352), (6, 42846960), (8, 32135220), (9, 28564640), (10, 25708176), (12, 21423480), (13, 19775520), (15, 17138784), (16, 16067610), (18, 14282320), (20, 12854088), (24, 10711740), (26, 9887760), (30, 8569392), (31, 8292960), (32, 8033805), (36, 7141160), (39, 6591840), (40, 6427044), (45, 5712928), (48, 5355870), (52, 4943880), (60, 4284696), (62, 4146480), (65, 3955104), (72, 3570580), (78, 3295920), (80, 3213522), (90, 2856464), (93, 2764320), (96, 2677935), (104, 2471940), (117, 2197280), (120, 2142348), (124, 2073240), (130, 1977552), (144, 1785290), (155, 1658592), (156, 1647960), (160, 1606761), (180, 1428232), (186, 1382160), (195, 1318368), (208, 1235970), (234, 1098640), (240, 1071174), (248, 1036620), (260, 988776), (279, 921440), (288, 892645), (310, 829296), (312, 823980), (360, 714116), (372, 691080), (390, 659184), (403, 637920), (416, 617985), (443, 580320), (465, 552864), (468, 549320), (480, 535587), (496, 518310), (520, 494388), (558, 460720), (585, 439456), (620, 414648), (624, 411990), (720, 357058), (744, 345540), (780, 329592), (806, 318960), (886, 290160), (930, 276432), (936, 274660), (992, 259155), (1040, 247194), (1116, 230360), (1170, 219728), (1209, 212640), (1240, 207324), (1248, 205995), (1329, 193440), (1395, 184288), (1440, 178529), (1488, 172770), (1560, 164796), (1612, 159480), (1772, 145080), (1860, 138216), (1872, 137330), (2015, 127584), (2080, 123597), (2215, 116064), (2232, 115180), (2340, 109864), (2418, 106320), (2480, 103662), (2658, 96720), (2790, 92144), (2976, 86385), (3120, 82398), (3224, 79740), (3544, 72540), (3627, 70880), (3720, 69108), (3744, 68665), (3987, 64480), (4030, 63792), (4430, 58032), (4464, 57590), (4680, 54932), (4836, 53160), (4960, 51831), (5316, 48360), (5580, 46072), (5759, 44640), (6045, 42528), (6240, 41199), (6448, 39870), (6645, 38688), (7088, 36270), (7254, 35440), (7440, 34554), (7974, 32240), (8060, 31896), (8860, 29016), (8928, 28795), (9360, 27466), (9672, 26580), (10632, 24180), (11160, 23036), (11518, 22320), (12090, 21264), (12896, 19935), (13290, 19344), (13733, 18720), (14176, 18135), (14508, 17720), (14880, 17277), (15948, 16120)]