321457408

素因数分解:

$2^8\times {\mathrm{1255693}}^1$

素因数の和:1255709

約数の個数: 18

約数和(自身を含む): 641659634

約数和(自身を除く): 320202226

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 1255693, 2511386, 5022772, 10045544, 20091088, 40182176, 80364352, 160728704, 321457408]

約数ペア:

[(1, 321457408), (2, 160728704), (4, 80364352), (8, 40182176), (16, 20091088), (32, 10045544), (64, 5022772), (128, 2511386), (256, 1255693)]