20025550

素因数分解:

$2^1\times 5^2\times {\mathrm{71}}^1\times {\mathrm{5641}}^1$

素因数の和:5724

約数の個数: 24

約数和(自身を含む): 37778832

約数和(自身を除く): 17753282

約数列:

[1, 2, 5, 10, 25, 50, 71, 142, 355, 710, 1775, 3550, 5641, 11282, 28205, 56410, 141025, 282050, 400511, 801022, 2002555, 4005110, 10012775, 20025550]

約数ペア:

[(1, 20025550), (2, 10012775), (5, 4005110), (10, 2002555), (25, 801022), (50, 400511), (71, 282050), (142, 141025), (355, 56410), (710, 28205), (1775, 11282), (3550, 5641)]