128540880

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{443}}^1$

素因数の和:506

約数の個数: 240

約数和(自身を含む): 480969216

約数和(自身を除く): 352428336

約数列:

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

約数ペア:

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