12721010

素因数分解:

$2^1\times 5^1\times {\mathrm{269}}^1\times {\mathrm{4729}}^1$

素因数の和:5005

約数の個数: 16

約数和(自身を含む): 22987800

約数和(自身を除く): 10266790

約数列:

[1, 2, 5, 10, 269, 538, 1345, 2690, 4729, 9458, 23645, 47290, 1272101, 2544202, 6360505, 12721010]

約数ペア:

[(1, 12721010), (2, 6360505), (5, 2544202), (10, 1272101), (269, 47290), (538, 23645), (1345, 9458), (2690, 4729)]