163600720

素因数分解:

$2^4\times 5^1\times {\mathrm{2045009}}^1$

素因数の和:2045022

約数の個数: 20

約数和(自身を含む): 380371860

約数和(自身を除く): 216771140

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2045009, 4090018, 8180036, 10225045, 16360072, 20450090, 32720144, 40900180, 81800360, 163600720]

約数ペア:

[(1, 163600720), (2, 81800360), (4, 40900180), (5, 32720144), (8, 20450090), (10, 16360072), (16, 10225045), (20, 8180036), (40, 4090018), (80, 2045009)]