78787568

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{120103}}^1$

素因数の和:120152

約数の個数: 20

約数和(自身を含む): 156375408

約数和(自身を除く): 77587840

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 120103, 240206, 480412, 960824, 1921648, 4924223, 9848446, 19696892, 39393784, 78787568]

約数ペア:

[(1, 78787568), (2, 39393784), (4, 19696892), (8, 9848446), (16, 4924223), (41, 1921648), (82, 960824), (164, 480412), (328, 240206), (656, 120103)]