81417140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{581551}}^1$

素因数の和:581567

約数の個数: 24

約数和(自身を含む): 195401472

約数和(自身を除く): 113984332

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 581551, 1163102, 2326204, 2907755, 4070857, 5815510, 8141714, 11631020, 16283428, 20354285, 40708570, 81417140]

約数ペア:

[(1, 81417140), (2, 40708570), (4, 20354285), (5, 16283428), (7, 11631020), (10, 8141714), (14, 5815510), (20, 4070857), (28, 2907755), (35, 2326204), (70, 1163102), (140, 581551)]