51606640

素因数分解:

$2^4\times 5^1\times {\mathrm{645083}}^1$

素因数の和:645096

約数の個数: 20

約数和(自身を含む): 119985624

約数和(自身を除く): 68378984

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 645083, 1290166, 2580332, 3225415, 5160664, 6450830, 10321328, 12901660, 25803320, 51606640]

約数ペア:

[(1, 51606640), (2, 25803320), (4, 12901660), (5, 10321328), (8, 6450830), (10, 5160664), (16, 3225415), (20, 2580332), (40, 1290166), (80, 645083)]