85400720

素因数分解:

$2^4\times 5^1\times {\mathrm{1067509}}^1$

素因数の和:1067522

約数の個数: 20

約数和(自身を含む): 198556860

約数和(自身を除く): 113156140

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1067509, 2135018, 4270036, 5337545, 8540072, 10675090, 17080144, 21350180, 42700360, 85400720]

約数ペア:

[(1, 85400720), (2, 42700360), (4, 21350180), (5, 17080144), (8, 10675090), (10, 8540072), (16, 5337545), (20, 4270036), (40, 2135018), (80, 1067509)]