20802124820

素因数分解:

$2^2\times 5^1\times {\mathrm{32783}}^1\times {\mathrm{31727}}^1$

素因数の和:64519

約数の個数: 24

約数和(自身を含む): 43687171584

約数和(自身を除く): 22885046764

約数列:

[1, 2, 4, 5, 10, 20, 31727, 32783, 63454, 65566, 126908, 131132, 158635, 163915, 317270, 327830, 634540, 655660, 1040106241, 2080212482, 4160424964, 5200531205, 10401062410, 20802124820]

約数ペア:

[(1, 20802124820), (2, 10401062410), (4, 5200531205), (5, 4160424964), (10, 2080212482), (20, 1040106241), (31727, 655660), (32783, 634540), (63454, 327830), (65566, 317270), (126908, 163915), (131132, 158635)]