2656820

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1871}}^1$

素因数の和:1951

約数の個数: 24

約数和(自身を含む): 5660928

約数和(自身を除く): 3004108

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 1871, 3742, 7484, 9355, 18710, 37420, 132841, 265682, 531364, 664205, 1328410, 2656820]

約数ペア:

[(1, 2656820), (2, 1328410), (4, 664205), (5, 531364), (10, 265682), (20, 132841), (71, 37420), (142, 18710), (284, 9355), (355, 7484), (710, 3742), (1420, 1871)]