28520336

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{137117}}^1$

素因数の和:137138

約数の個数: 20

約数和(自身を含む): 59509212

約数和(自身を除く): 30988876

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 137117, 274234, 548468, 1096936, 1782521, 2193872, 3565042, 7130084, 14260168, 28520336]

約数ペア:

[(1, 28520336), (2, 14260168), (4, 7130084), (8, 3565042), (13, 2193872), (16, 1782521), (26, 1096936), (52, 548468), (104, 274234), (208, 137117)]