78629920

素因数分解:

$2^5\times 5^1\times {\mathrm{113}}^1\times {\mathrm{4349}}^1$

素因数の和:4477

約数の個数: 48

約数和(自身を含む): 187450200

約数和(自身を除く): 108820280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 113, 160, 226, 452, 565, 904, 1130, 1808, 2260, 3616, 4349, 4520, 8698, 9040, 17396, 18080, 21745, 34792, 43490, 69584, 86980, 139168, 173960, 347920, 491437, 695840, 982874, 1965748, 2457185, 3931496, 4914370, 7862992, 9828740, 15725984, 19657480, 39314960, 78629920]

約数ペア:

[(1, 78629920), (2, 39314960), (4, 19657480), (5, 15725984), (8, 9828740), (10, 7862992), (16, 4914370), (20, 3931496), (32, 2457185), (40, 1965748), (80, 982874), (113, 695840), (160, 491437), (226, 347920), (452, 173960), (565, 139168), (904, 86980), (1130, 69584), (1808, 43490), (2260, 34792), (3616, 21745), (4349, 18080), (4520, 17396), (8698, 9040)]