140000720

素因数分解:

$2^4\times 5^1\times {\mathrm{1750009}}^1$

素因数の和:1750022

約数の個数: 20

約数和(自身を含む): 325501860

約数和(自身を除く): 185501140

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1750009, 3500018, 7000036, 8750045, 14000072, 17500090, 28000144, 35000180, 70000360, 140000720]

約数ペア:

[(1, 140000720), (2, 70000360), (4, 35000180), (5, 28000144), (8, 17500090), (10, 14000072), (16, 8750045), (20, 7000036), (40, 3500018), (80, 1750009)]