78415980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{1306933}}^1$

素因数の和:1306945

約数の個数: 24

約数和(自身を含む): 219564912

約数和(自身を除く): 141148932

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 1306933, 2613866, 3920799, 5227732, 6534665, 7841598, 13069330, 15683196, 19603995, 26138660, 39207990, 78415980]

約数ペア:

[(1, 78415980), (2, 39207990), (3, 26138660), (4, 19603995), (5, 15683196), (6, 13069330), (10, 7841598), (12, 6534665), (15, 5227732), (20, 3920799), (30, 2613866), (60, 1306933)]