20777420

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{7583}}^1$

素因数の和:7729

約数の個数: 24

約数和(自身を含む): 43956864

約数和(自身を除く): 23179444

約数列:

[1, 2, 4, 5, 10, 20, 137, 274, 548, 685, 1370, 2740, 7583, 15166, 30332, 37915, 75830, 151660, 1038871, 2077742, 4155484, 5194355, 10388710, 20777420]

約数ペア:

[(1, 20777420), (2, 10388710), (4, 5194355), (5, 4155484), (10, 2077742), (20, 1038871), (137, 151660), (274, 75830), (548, 37915), (685, 30332), (1370, 15166), (2740, 7583)]