208035405

素因数分解:

$3^3\times 5^1\times {\mathrm{1541003}}^1$

素因数の和:1541017

約数の個数: 16

約数和(自身を含む): 369840960

約数和(自身を除く): 161805555

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 1541003, 4623009, 7705015, 13869027, 23115045, 41607081, 69345135, 208035405]

約数ペア:

[(1, 208035405), (3, 69345135), (5, 41607081), (9, 23115045), (15, 13869027), (27, 7705015), (45, 4623009), (135, 1541003)]