128501542

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{257}}^1\times {\mathrm{19231}}^1$

素因数の和:19503

約数の個数: 16

約数和(自身を含む): 208397952

約数和(自身を除く): 79896410

約数列:

[1, 2, 13, 26, 257, 514, 3341, 6682, 19231, 38462, 250003, 500006, 4942367, 9884734, 64250771, 128501542]

約数ペア:

[(1, 128501542), (2, 64250771), (13, 9884734), (26, 4942367), (257, 500006), (514, 250003), (3341, 38462), (6682, 19231)]