71320840

素因数分解:

$2^3\times 5^1\times {\mathrm{563}}^1\times {\mathrm{3167}}^1$

素因数の和:3741

約数の個数: 32

約数和(自身を含む): 160807680

約数和(自身を除く): 89486840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 563, 1126, 2252, 2815, 3167, 4504, 5630, 6334, 11260, 12668, 15835, 22520, 25336, 31670, 63340, 126680, 1783021, 3566042, 7132084, 8915105, 14264168, 17830210, 35660420, 71320840]

約数ペア:

[(1, 71320840), (2, 35660420), (4, 17830210), (5, 14264168), (8, 8915105), (10, 7132084), (20, 3566042), (40, 1783021), (563, 126680), (1126, 63340), (2252, 31670), (2815, 25336), (3167, 22520), (4504, 15835), (5630, 12668), (6334, 11260)]