28651010

素因数分解:

$2^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{21871}}^1$

素因数の和:22009

約数の個数: 16

約数和(自身を含む): 51967872

約数和(自身を除く): 23316862

約数列:

[1, 2, 5, 10, 131, 262, 655, 1310, 21871, 43742, 109355, 218710, 2865101, 5730202, 14325505, 28651010]

約数ペア:

[(1, 28651010), (2, 14325505), (5, 5730202), (10, 2865101), (131, 218710), (262, 109355), (655, 43742), (1310, 21871)]