81010480

素因数分解:

$2^4\times 5^1\times {\mathrm{1012631}}^1$

素因数の和:1012644

約数の個数: 20

約数和(自身を含む): 188349552

約数和(自身を除く): 107339072

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1012631, 2025262, 4050524, 5063155, 8101048, 10126310, 16202096, 20252620, 40505240, 81010480]

約数ペア:

[(1, 81010480), (2, 40505240), (4, 20252620), (5, 16202096), (8, 10126310), (10, 8101048), (16, 5063155), (20, 4050524), (40, 2025262), (80, 1012631)]