31157280

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{281}}^1$

素因数の和:320

約数の個数: 288

約数和(自身を含む): 133031808

約数和(自身を除く): 101874528

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 16, 18, 20, 21, 22, 24, 28, 30, 32, 33, 35, 36, 40, 42, 44, 45, 48, 55, 56, 60, 63, 66, 70, 72, 77, 80, 84, 88, 90, 96, 99, 105, 110, 112, 120, 126, 132, 140, 144, 154, 160, 165, 168, 176, 180, 198, 210, 220, 224, 231, 240, 252, 264, 280, 281, 288, 308, 315, 330, 336, 352, 360, 385, 396, 420, 440, 462, 480, 495, 504, 528, 560, 562, 616, 630, 660, 672, 693, 720, 770, 792, 840, 843, 880, 924, 990, 1008, 1056, 1120, 1124, 1155, 1232, 1260, 1320, 1386, 1405, 1440, 1540, 1584, 1680, 1686, 1760, 1848, 1967, 1980, 2016, 2248, 2310, 2464, 2520, 2529, 2640, 2772, 2810, 3080, 3091, 3168, 3360, 3372, 3465, 3696, 3934, 3960, 4215, 4496, 4620, 5040, 5058, 5280, 5544, 5620, 5901, 6160, 6182, 6744, 6930, 7392, 7868, 7920, 8430, 8992, 9240, 9273, 9835, 10080, 10116, 11088, 11240, 11802, 12320, 12364, 12645, 13488, 13860, 15455, 15736, 15840, 16860, 17703, 18480, 18546, 19670, 20232, 21637, 22176, 22480, 23604, 24728, 25290, 26976, 27720, 27819, 29505, 30910, 31472, 33720, 35406, 36960, 37092, 39340, 40464, 43274, 44960, 46365, 47208, 49456, 50580, 55440, 55638, 59010, 61820, 62944, 64911, 67440, 70812, 74184, 78680, 80928, 86548, 88515, 92730, 94416, 98912, 101160, 108185, 110880, 111276, 118020, 123640, 129822, 134880, 139095, 141624, 148368, 157360, 173096, 177030, 185460, 188832, 194733, 202320, 216370, 222552, 236040, 247280, 259644, 278190, 283248, 296736, 314720, 324555, 346192, 354060, 370920, 389466, 404640, 432740, 445104, 472080, 494560, 519288, 556380, 566496, 649110, 692384, 708120, 741840, 778932, 865480, 890208, 944160, 973665, 1038576, 1112760, 1298220, 1416240, 1483680, 1557864, 1730960, 1947330, 2077152, 2225520, 2596440, 2832480, 3115728, 3461920, 3894660, 4451040, 5192880, 6231456, 7789320, 10385760, 15578640, 31157280]

約数ペア:

[(1, 31157280), (2, 15578640), (3, 10385760), (4, 7789320), (5, 6231456), (6, 5192880), (7, 4451040), (8, 3894660), (9, 3461920), (10, 3115728), (11, 2832480), (12, 2596440), (14, 2225520), (15, 2077152), (16, 1947330), (18, 1730960), (20, 1557864), (21, 1483680), (22, 1416240), (24, 1298220), (28, 1112760), (30, 1038576), (32, 973665), (33, 944160), (35, 890208), (36, 865480), (40, 778932), (42, 741840), (44, 708120), (45, 692384), (48, 649110), (55, 566496), (56, 556380), (60, 519288), (63, 494560), (66, 472080), (70, 445104), (72, 432740), (77, 404640), (80, 389466), (84, 370920), (88, 354060), (90, 346192), (96, 324555), (99, 314720), (105, 296736), (110, 283248), (112, 278190), (120, 259644), (126, 247280), (132, 236040), (140, 222552), (144, 216370), (154, 202320), (160, 194733), (165, 188832), (168, 185460), (176, 177030), (180, 173096), (198, 157360), (210, 148368), (220, 141624), (224, 139095), (231, 134880), (240, 129822), (252, 123640), (264, 118020), (280, 111276), (281, 110880), (288, 108185), (308, 101160), (315, 98912), (330, 94416), (336, 92730), (352, 88515), (360, 86548), (385, 80928), (396, 78680), (420, 74184), (440, 70812), (462, 67440), (480, 64911), (495, 62944), (504, 61820), (528, 59010), (560, 55638), (562, 55440), (616, 50580), (630, 49456), (660, 47208), (672, 46365), (693, 44960), (720, 43274), (770, 40464), (792, 39340), (840, 37092), (843, 36960), (880, 35406), (924, 33720), (990, 31472), (1008, 30910), (1056, 29505), (1120, 27819), (1124, 27720), (1155, 26976), (1232, 25290), (1260, 24728), (1320, 23604), (1386, 22480), (1405, 22176), (1440, 21637), (1540, 20232), (1584, 19670), (1680, 18546), (1686, 18480), (1760, 17703), (1848, 16860), (1967, 15840), (1980, 15736), (2016, 15455), (2248, 13860), (2310, 13488), (2464, 12645), (2520, 12364), (2529, 12320), (2640, 11802), (2772, 11240), (2810, 11088), (3080, 10116), (3091, 10080), (3168, 9835), (3360, 9273), (3372, 9240), (3465, 8992), (3696, 8430), (3934, 7920), (3960, 7868), (4215, 7392), (4496, 6930), (4620, 6744), (5040, 6182), (5058, 6160), (5280, 5901), (5544, 5620)]