20165780

素因数分解:

$2^2\times 5^1\times {\mathrm{191}}^1\times {\mathrm{5279}}^1$

素因数の和:5479

約数の個数: 24

約数和(自身を含む): 42577920

約数和(自身を除く): 22412140

約数列:

[1, 2, 4, 5, 10, 20, 191, 382, 764, 955, 1910, 3820, 5279, 10558, 21116, 26395, 52790, 105580, 1008289, 2016578, 4033156, 5041445, 10082890, 20165780]

約数ペア:

[(1, 20165780), (2, 10082890), (4, 5041445), (5, 4033156), (10, 2016578), (20, 1008289), (191, 105580), (382, 52790), (764, 26395), (955, 21116), (1910, 10558), (3820, 5279)]