9992720

素因数分解:

$2^4\times 5^1\times {\mathrm{124909}}^1$

素因数の和:124922

約数の個数: 20

約数和(自身を含む): 23233260

約数和(自身を除く): 13240540

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 124909, 249818, 499636, 624545, 999272, 1249090, 1998544, 2498180, 4996360, 9992720]

約数ペア:

[(1, 9992720), (2, 4996360), (4, 2498180), (5, 1998544), (8, 1249090), (10, 999272), (16, 624545), (20, 499636), (40, 249818), (80, 124909)]