80967980

素因数分解:

$2^2\times 5^1\times {\mathrm{1427}}^1\times {\mathrm{2837}}^1$

素因数の和:4273

約数の個数: 24

約数和(自身を含む): 170211888

約数和(自身を除く): 89243908

約数列:

[1, 2, 4, 5, 10, 20, 1427, 2837, 2854, 5674, 5708, 7135, 11348, 14185, 14270, 28370, 28540, 56740, 4048399, 8096798, 16193596, 20241995, 40483990, 80967980]

約数ペア:

[(1, 80967980), (2, 40483990), (4, 20241995), (5, 16193596), (10, 8096798), (20, 4048399), (1427, 56740), (2837, 28540), (2854, 28370), (5674, 14270), (5708, 14185), (7135, 11348)]