1991231495

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^2\times {\mathrm{43049}}^1$

素因数の和:43123

約数の個数: 24

約数和(自身を含む): 2699751600

約数和(自身を除く): 708520105

約数列:

[1, 5, 11, 29, 55, 145, 319, 841, 1595, 4205, 9251, 43049, 46255, 215245, 473539, 1248421, 2367695, 6242105, 13732631, 36204209, 68663155, 181021045, 398246299, 1991231495]

約数ペア:

[(1, 1991231495), (5, 398246299), (11, 181021045), (29, 68663155), (55, 36204209), (145, 13732631), (319, 6242105), (841, 2367695), (1595, 1248421), (4205, 473539), (9251, 215245), (43049, 46255)]