788400135

素因数分解:

$3^5\times 5^1\times {\mathrm{648889}}^1$

素因数の和:648909

約数の個数: 24

約数和(自身を含む): 1417175760

約数和(自身を除く): 628775625

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 1215, 648889, 1946667, 3244445, 5840001, 9733335, 17520003, 29200005, 52560009, 87600015, 157680027, 262800045, 788400135]

約数ペア:

[(1, 788400135), (3, 262800045), (5, 157680027), (9, 87600015), (15, 52560009), (27, 29200005), (45, 17520003), (81, 9733335), (135, 5840001), (243, 3244445), (405, 1946667), (1215, 648889)]