28299010

素因数分解:

$2^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{20359}}^1$

素因数の和:20505

約数の個数: 16

約数和(自身を含む): 51307200

約数和(自身を除く): 23008190

約数列:

[1, 2, 5, 10, 139, 278, 695, 1390, 20359, 40718, 101795, 203590, 2829901, 5659802, 14149505, 28299010]

約数ペア:

[(1, 28299010), (2, 14149505), (5, 5659802), (10, 2829901), (139, 203590), (278, 101795), (695, 40718), (1390, 20359)]