66991040

素因数分解:

$2^6\times 5^1\times {\mathrm{209347}}^1$

素因数の和:209364

約数の個数: 28

約数和(自身を含む): 159523176

約数和(自身を除く): 92532136

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 209347, 418694, 837388, 1046735, 1674776, 2093470, 3349552, 4186940, 6699104, 8373880, 13398208, 16747760, 33495520, 66991040]

約数ペア:

[(1, 66991040), (2, 33495520), (4, 16747760), (5, 13398208), (8, 8373880), (10, 6699104), (16, 4186940), (20, 3349552), (32, 2093470), (40, 1674776), (64, 1046735), (80, 837388), (160, 418694), (320, 209347)]