81534960

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{281}}^1$

素因数の和:344

約数の個数: 240

約数和(自身を含む): 305480448

約数和(自身を除く): 223945488

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, 281, 310, 312, 360, 372, 390, 403, 465, 468, 496, 520, 558, 562, 585, 620, 624, 720, 744, 780, 806, 843, 930, 936, 1040, 1116, 1124, 1170, 1209, 1240, 1395, 1405, 1488, 1560, 1612, 1686, 1860, 1872, 2015, 2232, 2248, 2340, 2418, 2480, 2529, 2790, 2810, 3120, 3224, 3372, 3627, 3653, 3720, 4030, 4215, 4464, 4496, 4680, 4836, 5058, 5580, 5620, 6045, 6448, 6744, 7254, 7306, 7440, 8060, 8430, 8711, 9360, 9672, 10116, 10959, 11160, 11240, 12090, 12645, 13488, 14508, 14612, 16120, 16860, 17422, 18135, 18265, 19344, 20232, 21918, 22320, 22480, 24180, 25290, 26133, 29016, 29224, 32240, 32877, 33720, 34844, 36270, 36530, 40464, 43555, 43836, 48360, 50580, 52266, 54795, 58032, 58448, 65754, 67440, 69688, 72540, 73060, 78399, 87110, 87672, 96720, 101160, 104532, 109590, 113243, 130665, 131508, 139376, 145080, 146120, 156798, 164385, 174220, 175344, 202320, 209064, 219180, 226486, 261330, 263016, 290160, 292240, 313596, 328770, 339729, 348440, 391995, 418128, 438360, 452972, 522660, 526032, 566215, 627192, 657540, 679458, 696880, 783990, 876720, 905944, 1019187, 1045320, 1132430, 1254384, 1315080, 1358916, 1567980, 1698645, 1811888, 2038374, 2090640, 2264860, 2630160, 2717832, 3135960, 3397290, 4076748, 4529720, 5095935, 5435664, 6271920, 6794580, 8153496, 9059440, 10191870, 13589160, 16306992, 20383740, 27178320, 40767480, 81534960]

約数ペア:

[(1, 81534960), (2, 40767480), (3, 27178320), (4, 20383740), (5, 16306992), (6, 13589160), (8, 10191870), (9, 9059440), (10, 8153496), (12, 6794580), (13, 6271920), (15, 5435664), (16, 5095935), (18, 4529720), (20, 4076748), (24, 3397290), (26, 3135960), (30, 2717832), (31, 2630160), (36, 2264860), (39, 2090640), (40, 2038374), (45, 1811888), (48, 1698645), (52, 1567980), (60, 1358916), (62, 1315080), (65, 1254384), (72, 1132430), (78, 1045320), (80, 1019187), (90, 905944), (93, 876720), (104, 783990), (117, 696880), (120, 679458), (124, 657540), (130, 627192), (144, 566215), (155, 526032), (156, 522660), (180, 452972), (186, 438360), (195, 418128), (208, 391995), (234, 348440), (240, 339729), (248, 328770), (260, 313596), (279, 292240), (281, 290160), (310, 263016), (312, 261330), (360, 226486), (372, 219180), (390, 209064), (403, 202320), (465, 175344), (468, 174220), (496, 164385), (520, 156798), (558, 146120), (562, 145080), (585, 139376), (620, 131508), (624, 130665), (720, 113243), (744, 109590), (780, 104532), (806, 101160), (843, 96720), (930, 87672), (936, 87110), (1040, 78399), (1116, 73060), (1124, 72540), (1170, 69688), (1209, 67440), (1240, 65754), (1395, 58448), (1405, 58032), (1488, 54795), (1560, 52266), (1612, 50580), (1686, 48360), (1860, 43836), (1872, 43555), (2015, 40464), (2232, 36530), (2248, 36270), (2340, 34844), (2418, 33720), (2480, 32877), (2529, 32240), (2790, 29224), (2810, 29016), (3120, 26133), (3224, 25290), (3372, 24180), (3627, 22480), (3653, 22320), (3720, 21918), (4030, 20232), (4215, 19344), (4464, 18265), (4496, 18135), (4680, 17422), (4836, 16860), (5058, 16120), (5580, 14612), (5620, 14508), (6045, 13488), (6448, 12645), (6744, 12090), (7254, 11240), (7306, 11160), (7440, 10959), (8060, 10116), (8430, 9672), (8711, 9360)]