80505280755

素因数分解:

$3^4\times 5^1\times {\mathrm{198778471}}^1$

素因数の和:198778488

約数の個数: 20

約数和(自身を含む): 144313170672

約数和(自身を除く): 63807889917

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 198778471, 596335413, 993892355, 1789006239, 2981677065, 5367018717, 8945031195, 16101056151, 26835093585, 80505280755]

約数ペア:

[(1, 80505280755), (3, 26835093585), (5, 16101056151), (9, 8945031195), (15, 5367018717), (27, 2981677065), (45, 1789006239), (81, 993892355), (135, 596335413), (405, 198778471)]