77809040

素因数分解:

$2^4\times 5^1\times {\mathrm{972613}}^1$

素因数の和:972626

約数の個数: 20

約数和(自身を含む): 180906204

約数和(自身を除く): 103097164

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 972613, 1945226, 3890452, 4863065, 7780904, 9726130, 15561808, 19452260, 38904520, 77809040]

約数ペア:

[(1, 77809040), (2, 38904520), (4, 19452260), (5, 15561808), (8, 9726130), (10, 7780904), (16, 4863065), (20, 3890452), (40, 1945226), (80, 972613)]