19665590

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{499}}^1\times {\mathrm{563}}^1$

素因数の和:1076

約数の個数: 32

約数和(自身を含む): 40608000

約数和(自身を除く): 20942410

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 499, 563, 998, 1126, 2495, 2815, 3493, 3941, 4990, 5630, 6986, 7882, 17465, 19705, 34930, 39410, 280937, 561874, 1404685, 1966559, 2809370, 3933118, 9832795, 19665590]

約数ペア:

[(1, 19665590), (2, 9832795), (5, 3933118), (7, 2809370), (10, 1966559), (14, 1404685), (35, 561874), (70, 280937), (499, 39410), (563, 34930), (998, 19705), (1126, 17465), (2495, 7882), (2815, 6986), (3493, 5630), (3941, 4990)]