81401760

素因数分解:

$2^5\times 3^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{571}}^1$

素因数の和:609

約数の個数: 240

約数和(自身を含む): 313945632

約数和(自身を除く): 232543872

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 27, 30, 32, 33, 36, 40, 44, 45, 48, 54, 55, 60, 66, 72, 80, 81, 88, 90, 96, 99, 108, 110, 120, 132, 135, 144, 160, 162, 165, 176, 180, 198, 216, 220, 240, 264, 270, 288, 297, 324, 330, 352, 360, 396, 405, 432, 440, 480, 495, 528, 540, 571, 594, 648, 660, 720, 792, 810, 864, 880, 891, 990, 1056, 1080, 1142, 1188, 1296, 1320, 1440, 1485, 1584, 1620, 1713, 1760, 1782, 1980, 2160, 2284, 2376, 2592, 2640, 2855, 2970, 3168, 3240, 3426, 3564, 3960, 4320, 4455, 4568, 4752, 5139, 5280, 5710, 5940, 6281, 6480, 6852, 7128, 7920, 8565, 8910, 9136, 9504, 10278, 11420, 11880, 12562, 12960, 13704, 14256, 15417, 15840, 17130, 17820, 18272, 18843, 20556, 22840, 23760, 25124, 25695, 27408, 28512, 30834, 31405, 34260, 35640, 37686, 41112, 45680, 46251, 47520, 50248, 51390, 54816, 56529, 61668, 62810, 68520, 71280, 75372, 77085, 82224, 91360, 92502, 94215, 100496, 102780, 113058, 123336, 125620, 137040, 142560, 150744, 154170, 164448, 169587, 185004, 188430, 200992, 205560, 226116, 231255, 246672, 251240, 274080, 282645, 301488, 308340, 339174, 370008, 376860, 411120, 452232, 462510, 493344, 502480, 508761, 565290, 602976, 616680, 678348, 740016, 753720, 822240, 847935, 904464, 925020, 1004960, 1017522, 1130580, 1233360, 1356696, 1480032, 1507440, 1695870, 1808928, 1850040, 2035044, 2261160, 2466720, 2543805, 2713392, 3014880, 3391740, 3700080, 4070088, 4522320, 5087610, 5426784, 6783480, 7400160, 8140176, 9044640, 10175220, 13566960, 16280352, 20350440, 27133920, 40700880, 81401760]

約数ペア:

[(1, 81401760), (2, 40700880), (3, 27133920), (4, 20350440), (5, 16280352), (6, 13566960), (8, 10175220), (9, 9044640), (10, 8140176), (11, 7400160), (12, 6783480), (15, 5426784), (16, 5087610), (18, 4522320), (20, 4070088), (22, 3700080), (24, 3391740), (27, 3014880), (30, 2713392), (32, 2543805), (33, 2466720), (36, 2261160), (40, 2035044), (44, 1850040), (45, 1808928), (48, 1695870), (54, 1507440), (55, 1480032), (60, 1356696), (66, 1233360), (72, 1130580), (80, 1017522), (81, 1004960), (88, 925020), (90, 904464), (96, 847935), (99, 822240), (108, 753720), (110, 740016), (120, 678348), (132, 616680), (135, 602976), (144, 565290), (160, 508761), (162, 502480), (165, 493344), (176, 462510), (180, 452232), (198, 411120), (216, 376860), (220, 370008), (240, 339174), (264, 308340), (270, 301488), (288, 282645), (297, 274080), (324, 251240), (330, 246672), (352, 231255), (360, 226116), (396, 205560), (405, 200992), (432, 188430), (440, 185004), (480, 169587), (495, 164448), (528, 154170), (540, 150744), (571, 142560), (594, 137040), (648, 125620), (660, 123336), (720, 113058), (792, 102780), (810, 100496), (864, 94215), (880, 92502), (891, 91360), (990, 82224), (1056, 77085), (1080, 75372), (1142, 71280), (1188, 68520), (1296, 62810), (1320, 61668), (1440, 56529), (1485, 54816), (1584, 51390), (1620, 50248), (1713, 47520), (1760, 46251), (1782, 45680), (1980, 41112), (2160, 37686), (2284, 35640), (2376, 34260), (2592, 31405), (2640, 30834), (2855, 28512), (2970, 27408), (3168, 25695), (3240, 25124), (3426, 23760), (3564, 22840), (3960, 20556), (4320, 18843), (4455, 18272), (4568, 17820), (4752, 17130), (5139, 15840), (5280, 15417), (5710, 14256), (5940, 13704), (6281, 12960), (6480, 12562), (6852, 11880), (7128, 11420), (7920, 10278), (8565, 9504), (8910, 9136)]