331168144

素因数分解:

$2^4\times {\mathrm{257}}^1\times {\mathrm{80537}}^1$

素因数の和:80802

約数の個数: 20

約数和(自身を含む): 644142924

約数和(自身を除く): 312974780

約数列:

[1, 2, 4, 8, 16, 257, 514, 1028, 2056, 4112, 80537, 161074, 322148, 644296, 1288592, 20698009, 41396018, 82792036, 165584072, 331168144]

約数ペア:

[(1, 331168144), (2, 165584072), (4, 82792036), (8, 41396018), (16, 20698009), (257, 1288592), (514, 644296), (1028, 322148), (2056, 161074), (4112, 80537)]