640828498

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{1723}}^1\times {\mathrm{10939}}^1$

素因数の和:12681

約数の個数: 16

約数和(自身を含む): 1018470240

約数和(自身を除く): 377641742

約数列:

[1, 2, 17, 34, 1723, 3446, 10939, 21878, 29291, 58582, 185963, 371926, 18847897, 37695794, 320414249, 640828498]

約数ペア:

[(1, 640828498), (2, 320414249), (17, 37695794), (34, 18847897), (1723, 371926), (3446, 185963), (10939, 58582), (21878, 29291)]