81164880

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{811}}^1$

素因数の和:969

約数の個数: 120

約数和(自身を含む): 274878240

約数和(自身を除く): 193713360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 139, 144, 180, 240, 278, 360, 417, 556, 695, 720, 811, 834, 1112, 1251, 1390, 1622, 1668, 2085, 2224, 2433, 2502, 2780, 3244, 3336, 4055, 4170, 4866, 5004, 5560, 6255, 6488, 6672, 7299, 8110, 8340, 9732, 10008, 11120, 12165, 12510, 12976, 14598, 16220, 16680, 19464, 20016, 24330, 25020, 29196, 32440, 33360, 36495, 38928, 48660, 50040, 58392, 64880, 72990, 97320, 100080, 112729, 116784, 145980, 194640, 225458, 291960, 338187, 450916, 563645, 583920, 676374, 901832, 1014561, 1127290, 1352748, 1690935, 1803664, 2029122, 2254580, 2705496, 3381870, 4058244, 4509160, 5072805, 5410992, 6763740, 8116488, 9018320, 10145610, 13527480, 16232976, 20291220, 27054960, 40582440, 81164880]

約数ペア:

[(1, 81164880), (2, 40582440), (3, 27054960), (4, 20291220), (5, 16232976), (6, 13527480), (8, 10145610), (9, 9018320), (10, 8116488), (12, 6763740), (15, 5410992), (16, 5072805), (18, 4509160), (20, 4058244), (24, 3381870), (30, 2705496), (36, 2254580), (40, 2029122), (45, 1803664), (48, 1690935), (60, 1352748), (72, 1127290), (80, 1014561), (90, 901832), (120, 676374), (139, 583920), (144, 563645), (180, 450916), (240, 338187), (278, 291960), (360, 225458), (417, 194640), (556, 145980), (695, 116784), (720, 112729), (811, 100080), (834, 97320), (1112, 72990), (1251, 64880), (1390, 58392), (1622, 50040), (1668, 48660), (2085, 38928), (2224, 36495), (2433, 33360), (2502, 32440), (2780, 29196), (3244, 25020), (3336, 24330), (4055, 20016), (4170, 19464), (4866, 16680), (5004, 16220), (5560, 14598), (6255, 12976), (6488, 12510), (6672, 12165), (7299, 11120), (8110, 10008), (8340, 9732)]