80961580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{578297}}^1$

素因数の和:578313

約数の個数: 24

約数和(自身を含む): 194308128

約数和(自身を除く): 113346548

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 578297, 1156594, 2313188, 2891485, 4048079, 5782970, 8096158, 11565940, 16192316, 20240395, 40480790, 80961580]

約数ペア:

[(1, 80961580), (2, 40480790), (4, 20240395), (5, 16192316), (7, 11565940), (10, 8096158), (14, 5782970), (20, 4048079), (28, 2891485), (35, 2313188), (70, 1156594), (140, 578297)]