20403490

素因数分解:

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

素因数の和:3017

約数の個数: 16

約数和(自身を含む): 36780480

約数和(自身を除く): 16376990

約数列:

[1, 2, 5, 10, 1031, 1979, 2062, 3958, 5155, 9895, 10310, 19790, 2040349, 4080698, 10201745, 20403490]

約数ペア:

[(1, 20403490), (2, 10201745), (5, 4080698), (10, 2040349), (1031, 19790), (1979, 10310), (2062, 9895), (3958, 5155)]