25726005

素因数分解:

$3^4\times 5^1\times {\mathrm{63521}}^1$

素因数の和:63538

約数の個数: 20

約数和(自身を含む): 46116972

約数和(自身を除く): 20390967

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 63521, 190563, 317605, 571689, 952815, 1715067, 2858445, 5145201, 8575335, 25726005]

約数ペア:

[(1, 25726005), (3, 8575335), (5, 5145201), (9, 2858445), (15, 1715067), (27, 952815), (45, 571689), (81, 317605), (135, 190563), (405, 63521)]