77742640

素因数分解:

$2^4\times 5^1\times {\mathrm{971783}}^1$

素因数の和:971796

約数の個数: 20

約数和(自身を含む): 180751824

約数和(自身を除く): 103009184

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 971783, 1943566, 3887132, 4858915, 7774264, 9717830, 15548528, 19435660, 38871320, 77742640]

約数ペア:

[(1, 77742640), (2, 38871320), (4, 19435660), (5, 15548528), (8, 9717830), (10, 7774264), (16, 4858915), (20, 3887132), (40, 1943566), (80, 971783)]