80880015105

素因数分解:

$3^4\times 5^1\times {\mathrm{199703741}}^1$

素因数の和:199703758

約数の個数: 20

約数和(自身を含む): 144984916692

約数和(自身を除く): 64104901587

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 199703741, 599111223, 998518705, 1797333669, 2995556115, 5392001007, 8986668345, 16176003021, 26960005035, 80880015105]

約数ペア:

[(1, 80880015105), (3, 26960005035), (5, 16176003021), (9, 8986668345), (15, 5392001007), (27, 2995556115), (45, 1797333669), (81, 998518705), (135, 599111223), (405, 199703741)]