20413490

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{49789}}^1$

素因数の和:49837

約数の個数: 16

約数和(自身を含む): 37641240

約数和(自身を除く): 17227750

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 49789, 99578, 248945, 497890, 2041349, 4082698, 10206745, 20413490]

約数ペア:

[(1, 20413490), (2, 10206745), (5, 4082698), (10, 2041349), (41, 497890), (82, 248945), (205, 99578), (410, 49789)]