82981520

素因数分解:

$2^4\times 5^1\times {\mathrm{811}}^1\times {\mathrm{1279}}^1$

素因数の和:2103

約数の個数: 40

約数和(自身を含む): 193320960

約数和(自身を除く): 110339440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 811, 1279, 1622, 2558, 3244, 4055, 5116, 6395, 6488, 8110, 10232, 12790, 12976, 16220, 20464, 25580, 32440, 51160, 64880, 102320, 1037269, 2074538, 4149076, 5186345, 8298152, 10372690, 16596304, 20745380, 41490760, 82981520]

約数ペア:

[(1, 82981520), (2, 41490760), (4, 20745380), (5, 16596304), (8, 10372690), (10, 8298152), (16, 5186345), (20, 4149076), (40, 2074538), (80, 1037269), (811, 102320), (1279, 64880), (1622, 51160), (2558, 32440), (3244, 25580), (4055, 20464), (5116, 16220), (6395, 12976), (6488, 12790), (8110, 10232)]