320438528

素因数分解:

$2^8\times {\mathrm{1251713}}^1$

素因数の和:1251729

約数の個数: 18

約数和(自身を含む): 639625854

約数和(自身を除く): 319187326

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 1251713, 2503426, 5006852, 10013704, 20027408, 40054816, 80109632, 160219264, 320438528]

約数ペア:

[(1, 320438528), (2, 160219264), (4, 80109632), (8, 40054816), (16, 20027408), (32, 10013704), (64, 5006852), (128, 2503426), (256, 1251713)]