5581305

素因数分解:

$3^4\times 5^1\times {\mathrm{13781}}^1$

素因数の和:13798

約数の個数: 20

約数和(自身を含む): 10005732

約数和(自身を除く): 4424427

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 13781, 41343, 68905, 124029, 206715, 372087, 620145, 1116261, 1860435, 5581305]

約数ペア:

[(1, 5581305), (3, 1860435), (5, 1116261), (9, 620145), (15, 372087), (27, 206715), (45, 124029), (81, 68905), (135, 41343), (405, 13781)]