78212020

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{37967}}^1$

素因数の和:38079

約数の個数: 24

約数和(自身を含む): 165844224

約数和(自身を除く): 87632204

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 2060, 37967, 75934, 151868, 189835, 379670, 759340, 3910601, 7821202, 15642404, 19553005, 39106010, 78212020]

約数ペア:

[(1, 78212020), (2, 39106010), (4, 19553005), (5, 15642404), (10, 7821202), (20, 3910601), (103, 759340), (206, 379670), (412, 189835), (515, 151868), (1030, 75934), (2060, 37967)]