28243405

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{1409}}^1$

素因数の和:1644

約数の個数: 16

約数和(自身を含む): 35870400

約数和(自身を除く): 7626995

約数列:

[1, 5, 19, 95, 211, 1055, 1409, 4009, 7045, 20045, 26771, 133855, 297299, 1486495, 5648681, 28243405]

約数ペア:

[(1, 28243405), (5, 5648681), (19, 1486495), (95, 297299), (211, 133855), (1055, 26771), (1409, 20045), (4009, 7045)]