253396880

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{2851}}^1$

素因数の和:2976

約数の個数: 80

約数和(自身を含む): 649297728

約数和(自身を除く): 395900848

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, 1010, 1111, 1616, 2020, 2222, 2851, 4040, 4444, 5555, 5702, 8080, 8888, 11110, 11404, 14255, 17776, 22220, 22808, 28510, 31361, 44440, 45616, 57020, 62722, 88880, 114040, 125444, 156805, 228080, 250888, 287951, 313610, 501776, 575902, 627220, 1151804, 1254440, 1439755, 2303608, 2508880, 2879510, 3167461, 4607216, 5759020, 6334922, 11518040, 12669844, 15837305, 23036080, 25339688, 31674610, 50679376, 63349220, 126698440, 253396880]

約数ペア:

[(1, 253396880), (2, 126698440), (4, 63349220), (5, 50679376), (8, 31674610), (10, 25339688), (11, 23036080), (16, 15837305), (20, 12669844), (22, 11518040), (40, 6334922), (44, 5759020), (55, 4607216), (80, 3167461), (88, 2879510), (101, 2508880), (110, 2303608), (176, 1439755), (202, 1254440), (220, 1151804), (404, 627220), (440, 575902), (505, 501776), (808, 313610), (880, 287951), (1010, 250888), (1111, 228080), (1616, 156805), (2020, 125444), (2222, 114040), (2851, 88880), (4040, 62722), (4444, 57020), (5555, 45616), (5702, 44440), (8080, 31361), (8888, 28510), (11110, 22808), (11404, 22220), (14255, 17776)]