80219565

素因数分解:

$3^4\times 5^1\times {\mathrm{198073}}^1$

素因数の和:198090

約数の個数: 20

約数和(自身を含む): 143801724

約数和(自身を除く): 63582159

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 198073, 594219, 990365, 1782657, 2971095, 5347971, 8913285, 16043913, 26739855, 80219565]

約数ペア:

[(1, 80219565), (3, 26739855), (5, 16043913), (9, 8913285), (15, 5347971), (27, 2971095), (45, 1782657), (81, 990365), (135, 594219), (405, 198073)]