31019120

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{349}}^1$

素因数の和:474

約数の個数: 80

約数和(自身を含む): 79682400

約数和(自身を除く): 48663280

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 101, 110, 176, 202, 220, 349, 404, 440, 505, 698, 808, 880, 1010, 1111, 1396, 1616, 1745, 2020, 2222, 2792, 3490, 3839, 4040, 4444, 5555, 5584, 6980, 7678, 8080, 8888, 11110, 13960, 15356, 17776, 19195, 22220, 27920, 30712, 35249, 38390, 44440, 61424, 70498, 76780, 88880, 140996, 153560, 176245, 281992, 307120, 352490, 387739, 563984, 704980, 775478, 1409960, 1550956, 1938695, 2819920, 3101912, 3877390, 6203824, 7754780, 15509560, 31019120]

約数ペア:

[(1, 31019120), (2, 15509560), (4, 7754780), (5, 6203824), (8, 3877390), (10, 3101912), (11, 2819920), (16, 1938695), (20, 1550956), (22, 1409960), (40, 775478), (44, 704980), (55, 563984), (80, 387739), (88, 352490), (101, 307120), (110, 281992), (176, 176245), (202, 153560), (220, 140996), (349, 88880), (404, 76780), (440, 70498), (505, 61424), (698, 44440), (808, 38390), (880, 35249), (1010, 30712), (1111, 27920), (1396, 22220), (1616, 19195), (1745, 17776), (2020, 15356), (2222, 13960), (2792, 11110), (3490, 8888), (3839, 8080), (4040, 7678), (4444, 6980), (5555, 5584)]