61520715

素因数分解:

$3^4\times 5^1\times {\mathrm{151903}}^1$

素因数の和:151920

約数の個数: 20

約数和(自身を含む): 110282304

約数和(自身を除く): 48761589

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 151903, 455709, 759515, 1367127, 2278545, 4101381, 6835635, 12304143, 20506905, 61520715]

約数ペア:

[(1, 61520715), (3, 20506905), (5, 12304143), (9, 6835635), (15, 4101381), (27, 2278545), (45, 1367127), (81, 759515), (135, 455709), (405, 151903)]