82720720

素因数分解:

$2^4\times 5^1\times {\mathrm{1034009}}^1$

素因数の和:1034022

約数の個数: 20

約数和(自身を含む): 192325860

約数和(自身を除く): 109605140

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1034009, 2068018, 4136036, 5170045, 8272072, 10340090, 16544144, 20680180, 41360360, 82720720]

約数ペア:

[(1, 82720720), (2, 41360360), (4, 20680180), (5, 16544144), (8, 10340090), (10, 8272072), (16, 5170045), (20, 4136036), (40, 2068018), (80, 1034009)]