78138160

素因数分解:

$2^4\times 5^1\times {\mathrm{976727}}^1$

素因数の和:976740

約数の個数: 20

約数和(自身を含む): 181671408

約数和(自身を除く): 103533248

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 976727, 1953454, 3906908, 4883635, 7813816, 9767270, 15627632, 19534540, 39069080, 78138160]

約数ペア:

[(1, 78138160), (2, 39069080), (4, 19534540), (5, 15627632), (8, 9767270), (10, 7813816), (16, 4883635), (20, 3906908), (40, 1953454), (80, 976727)]