78108970

素因数分解:

$2^1\times 5^1\times {\mathrm{1987}}^1\times {\mathrm{3931}}^1$

素因数の和:5925

約数の個数: 16

約数和(自身を含む): 140702688

約数和(自身を除く): 62593718

約数列:

[1, 2, 5, 10, 1987, 3931, 3974, 7862, 9935, 19655, 19870, 39310, 7810897, 15621794, 39054485, 78108970]

約数ペア:

[(1, 78108970), (2, 39054485), (5, 15621794), (10, 7810897), (1987, 39310), (3931, 19870), (3974, 19655), (7862, 9935)]