28243975

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{613}}^1$

素因数の和:739

約数の個数: 24

約数和(自身を含む): 37306640

約数和(自身を除く): 9062665

約数列:

[1, 5, 19, 25, 95, 97, 475, 485, 613, 1843, 2425, 3065, 9215, 11647, 15325, 46075, 58235, 59461, 291175, 297305, 1129759, 1486525, 5648795, 28243975]

約数ペア:

[(1, 28243975), (5, 5648795), (19, 1486525), (25, 1129759), (95, 297305), (97, 291175), (475, 59461), (485, 58235), (613, 46075), (1843, 15325), (2425, 11647), (3065, 9215)]