20168320

素因数分解:

$2^7\times 5^1\times {\mathrm{31513}}^1$

素因数の和:31532

約数の個数: 32

約数和(自身を含む): 48216420

約数和(自身を除く): 28048100

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 31513, 63026, 126052, 157565, 252104, 315130, 504208, 630260, 1008416, 1260520, 2016832, 2521040, 4033664, 5042080, 10084160, 20168320]

約数ペア:

[(1, 20168320), (2, 10084160), (4, 5042080), (5, 4033664), (8, 2521040), (10, 2016832), (16, 1260520), (20, 1008416), (32, 630260), (40, 504208), (64, 315130), (80, 252104), (128, 157565), (160, 126052), (320, 63026), (640, 31513)]