21566160

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{389}}^1$

素因数の和:426

約数の個数: 240

約数和(自身を含む): 90529920

約数和(自身を除く): 68963760

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, 33, 35, 36, 40, 42, 44, 45, 48, 55, 56, 60, 63, 66, 70, 72, 77, 80, 84, 88, 90, 99, 105, 110, 112, 120, 126, 132, 140, 144, 154, 165, 168, 176, 180, 198, 210, 220, 231, 240, 252, 264, 280, 308, 315, 330, 336, 360, 385, 389, 396, 420, 440, 462, 495, 504, 528, 560, 616, 630, 660, 693, 720, 770, 778, 792, 840, 880, 924, 990, 1008, 1155, 1167, 1232, 1260, 1320, 1386, 1540, 1556, 1584, 1680, 1848, 1945, 1980, 2310, 2334, 2520, 2640, 2723, 2772, 3080, 3112, 3465, 3501, 3696, 3890, 3960, 4279, 4620, 4668, 5040, 5446, 5544, 5835, 6160, 6224, 6930, 7002, 7780, 7920, 8169, 8558, 9240, 9336, 10892, 11088, 11670, 12837, 13615, 13860, 14004, 15560, 16338, 17116, 17505, 18480, 18672, 21395, 21784, 23340, 24507, 25674, 27230, 27720, 28008, 29953, 31120, 32676, 34232, 35010, 38511, 40845, 42790, 43568, 46680, 49014, 51348, 54460, 55440, 56016, 59906, 64185, 65352, 68464, 70020, 77022, 81690, 85580, 89859, 93360, 98028, 102696, 108920, 119812, 122535, 128370, 130704, 140040, 149765, 154044, 163380, 171160, 179718, 192555, 196056, 205392, 217840, 239624, 245070, 256740, 269577, 280080, 299530, 308088, 326760, 342320, 359436, 385110, 392112, 449295, 479248, 490140, 513480, 539154, 599060, 616176, 653520, 718872, 770220, 898590, 980280, 1026960, 1078308, 1198120, 1347885, 1437744, 1540440, 1797180, 1960560, 2156616, 2396240, 2695770, 3080880, 3594360, 4313232, 5391540, 7188720, 10783080, 21566160]

約数ペア:

[(1, 21566160), (2, 10783080), (3, 7188720), (4, 5391540), (5, 4313232), (6, 3594360), (7, 3080880), (8, 2695770), (9, 2396240), (10, 2156616), (11, 1960560), (12, 1797180), (14, 1540440), (15, 1437744), (16, 1347885), (18, 1198120), (20, 1078308), (21, 1026960), (22, 980280), (24, 898590), (28, 770220), (30, 718872), (33, 653520), (35, 616176), (36, 599060), (40, 539154), (42, 513480), (44, 490140), (45, 479248), (48, 449295), (55, 392112), (56, 385110), (60, 359436), (63, 342320), (66, 326760), (70, 308088), (72, 299530), (77, 280080), (80, 269577), (84, 256740), (88, 245070), (90, 239624), (99, 217840), (105, 205392), (110, 196056), (112, 192555), (120, 179718), (126, 171160), (132, 163380), (140, 154044), (144, 149765), (154, 140040), (165, 130704), (168, 128370), (176, 122535), (180, 119812), (198, 108920), (210, 102696), (220, 98028), (231, 93360), (240, 89859), (252, 85580), (264, 81690), (280, 77022), (308, 70020), (315, 68464), (330, 65352), (336, 64185), (360, 59906), (385, 56016), (389, 55440), (396, 54460), (420, 51348), (440, 49014), (462, 46680), (495, 43568), (504, 42790), (528, 40845), (560, 38511), (616, 35010), (630, 34232), (660, 32676), (693, 31120), (720, 29953), (770, 28008), (778, 27720), (792, 27230), (840, 25674), (880, 24507), (924, 23340), (990, 21784), (1008, 21395), (1155, 18672), (1167, 18480), (1232, 17505), (1260, 17116), (1320, 16338), (1386, 15560), (1540, 14004), (1556, 13860), (1584, 13615), (1680, 12837), (1848, 11670), (1945, 11088), (1980, 10892), (2310, 9336), (2334, 9240), (2520, 8558), (2640, 8169), (2723, 7920), (2772, 7780), (3080, 7002), (3112, 6930), (3465, 6224), (3501, 6160), (3696, 5835), (3890, 5544), (3960, 5446), (4279, 5040), (4620, 4668)]