78303280

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{881}}^1$

素因数の和:1006

約数の個数: 80

約数和(自身を含む): 200799648

約数和(自身を除く): 122496368

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 101, 110, 176, 202, 220, 404, 440, 505, 808, 880, 881, 1010, 1111, 1616, 1762, 2020, 2222, 3524, 4040, 4405, 4444, 5555, 7048, 8080, 8810, 8888, 9691, 11110, 14096, 17620, 17776, 19382, 22220, 35240, 38764, 44440, 48455, 70480, 77528, 88880, 88981, 96910, 155056, 177962, 193820, 355924, 387640, 444905, 711848, 775280, 889810, 978791, 1423696, 1779620, 1957582, 3559240, 3915164, 4893955, 7118480, 7830328, 9787910, 15660656, 19575820, 39151640, 78303280]

約数ペア:

[(1, 78303280), (2, 39151640), (4, 19575820), (5, 15660656), (8, 9787910), (10, 7830328), (11, 7118480), (16, 4893955), (20, 3915164), (22, 3559240), (40, 1957582), (44, 1779620), (55, 1423696), (80, 978791), (88, 889810), (101, 775280), (110, 711848), (176, 444905), (202, 387640), (220, 355924), (404, 193820), (440, 177962), (505, 155056), (808, 96910), (880, 88981), (881, 88880), (1010, 77528), (1111, 70480), (1616, 48455), (1762, 44440), (2020, 38764), (2222, 35240), (3524, 22220), (4040, 19382), (4405, 17776), (4444, 17620), (5555, 14096), (7048, 11110), (8080, 9691), (8810, 8888)]