84656840

素因数分解:

$2^3\times 5^1\times {\mathrm{1187}}^1\times {\mathrm{1783}}^1$

素因数の和:2981

約数の個数: 32

約数和(自身を含む): 190745280

約数和(自身を除く): 106088440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1187, 1783, 2374, 3566, 4748, 5935, 7132, 8915, 9496, 11870, 14264, 17830, 23740, 35660, 47480, 71320, 2116421, 4232842, 8465684, 10582105, 16931368, 21164210, 42328420, 84656840]

約数ペア:

[(1, 84656840), (2, 42328420), (4, 21164210), (5, 16931368), (8, 10582105), (10, 8465684), (20, 4232842), (40, 2116421), (1187, 71320), (1783, 47480), (2374, 35660), (3566, 23740), (4748, 17830), (5935, 14264), (7132, 11870), (8915, 9496)]