20406505

素因数分解:

$5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{5449}}^1$

素因数の和:5568

約数の個数: 16

約数和(自身を含む): 28252800

約数和(自身を除く): 7846295

約数列:

[1, 5, 7, 35, 107, 535, 749, 3745, 5449, 27245, 38143, 190715, 583043, 2915215, 4081301, 20406505]

約数ペア:

[(1, 20406505), (5, 4081301), (7, 2915215), (35, 583043), (107, 190715), (535, 38143), (749, 27245), (3745, 5449)]