80138660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{572419}}^1$

素因数の和:572435

約数の個数: 24

約数和(自身を含む): 192333120

約数和(自身を除く): 112194460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 572419, 1144838, 2289676, 2862095, 4006933, 5724190, 8013866, 11448380, 16027732, 20034665, 40069330, 80138660]

約数ペア:

[(1, 80138660), (2, 40069330), (4, 20034665), (5, 16027732), (7, 11448380), (10, 8013866), (14, 5724190), (20, 4006933), (28, 2862095), (35, 2289676), (70, 1144838), (140, 572419)]