8720055

素因数分解:

$3^5\times 5^1\times {\mathrm{7177}}^1$

素因数の和:7197

約数の個数: 24

約数和(自身を含む): 15676752

約数和(自身を除く): 6956697

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 1215, 7177, 21531, 35885, 64593, 107655, 193779, 322965, 581337, 968895, 1744011, 2906685, 8720055]

約数ペア:

[(1, 8720055), (3, 2906685), (5, 1744011), (9, 968895), (15, 581337), (27, 322965), (45, 193779), (81, 107655), (135, 64593), (243, 35885), (405, 21531), (1215, 7177)]