81691408

素因数分解:

$2^4\times {\mathrm{937}}^1\times {\mathrm{5449}}^1$

素因数の和:6394

約数の個数: 20

約数和(自身を含む): 158475100

約数和(自身を除く): 76783692

約数列:

[1, 2, 4, 8, 16, 937, 1874, 3748, 5449, 7496, 10898, 14992, 21796, 43592, 87184, 5105713, 10211426, 20422852, 40845704, 81691408]

約数ペア:

[(1, 81691408), (2, 40845704), (4, 20422852), (8, 10211426), (16, 5105713), (937, 87184), (1874, 43592), (3748, 21796), (5449, 14992), (7496, 10898)]