28195030

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{25867}}^1$

素因数の和:25983

約数の個数: 16

約数和(自身を含む): 51218640

約数和(自身を除く): 23023610

約数列:

[1, 2, 5, 10, 109, 218, 545, 1090, 25867, 51734, 129335, 258670, 2819503, 5639006, 14097515, 28195030]

約数ペア:

[(1, 28195030), (2, 14097515), (5, 5639006), (10, 2819503), (109, 258670), (218, 129335), (545, 51734), (1090, 25867)]