40806980

素因数分解:

$2^2\times 5^1\times {\mathrm{1031}}^1\times {\mathrm{1979}}^1$

素因数の和:3019

約数の個数: 24

約数和(自身を含む): 85821120

約数和(自身を除く): 45014140

約数列:

[1, 2, 4, 5, 10, 20, 1031, 1979, 2062, 3958, 4124, 5155, 7916, 9895, 10310, 19790, 20620, 39580, 2040349, 4080698, 8161396, 10201745, 20403490, 40806980]

約数ペア:

[(1, 40806980), (2, 20403490), (4, 10201745), (5, 8161396), (10, 4080698), (20, 2040349), (1031, 39580), (1979, 20620), (2062, 19790), (3958, 10310), (4124, 9895), (5155, 7916)]