20003195

素因数分解:

$5^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1\times {\mathrm{569}}^1$

素因数の和:742

約数の個数: 16

約数和(自身を含む): 24624000

約数和(自身を除く): 4620805

約数列:

[1, 5, 79, 89, 395, 445, 569, 2845, 7031, 35155, 44951, 50641, 224755, 253205, 4000639, 20003195]

約数ペア:

[(1, 20003195), (5, 4000639), (79, 253205), (89, 224755), (395, 50641), (445, 44951), (569, 35155), (2845, 7031)]