28219010

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{25889}}^1$

素因数の和:26005

約数の個数: 16

約数和(自身を含む): 51262200

約数和(自身を除く): 23043190

約数列:

[1, 2, 5, 10, 109, 218, 545, 1090, 25889, 51778, 129445, 258890, 2821901, 5643802, 14109505, 28219010]

約数ペア:

[(1, 28219010), (2, 14109505), (5, 5643802), (10, 2821901), (109, 258890), (218, 129445), (545, 51778), (1090, 25889)]