13456640

素因数分解:

$2^8\times 5^1\times {\mathrm{10513}}^1$

素因数の和:10534

約数の個数: 36

約数和(自身を含む): 32235924

約数和(自身を除く): 18779284

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 10513, 21026, 42052, 52565, 84104, 105130, 168208, 210260, 336416, 420520, 672832, 841040, 1345664, 1682080, 2691328, 3364160, 6728320, 13456640]

約数ペア:

[(1, 13456640), (2, 6728320), (4, 3364160), (5, 2691328), (8, 1682080), (10, 1345664), (16, 841040), (20, 672832), (32, 420520), (40, 336416), (64, 210260), (80, 168208), (128, 105130), (160, 84104), (256, 52565), (320, 42052), (640, 21026), (1280, 10513)]