20676380

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{33349}}^1$

素因数の和:33389

約数の個数: 24

約数和(自身を含む): 44822400

約数和(自身を除く): 24146020

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 33349, 66698, 133396, 166745, 333490, 666980, 1033819, 2067638, 4135276, 5169095, 10338190, 20676380]

約数ペア:

[(1, 20676380), (2, 10338190), (4, 5169095), (5, 4135276), (10, 2067638), (20, 1033819), (31, 666980), (62, 333490), (124, 166745), (155, 133396), (310, 66698), (620, 33349)]