42080715

素因数分解:

$3^4\times 5^1\times {\mathrm{103903}}^1$

素因数の和:103920

約数の個数: 20

約数和(自身を含む): 75434304

約数和(自身を除く): 33353589

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 103903, 311709, 519515, 935127, 1558545, 2805381, 4675635, 8416143, 14026905, 42080715]

約数ペア:

[(1, 42080715), (3, 14026905), (5, 8416143), (9, 4675635), (15, 2805381), (27, 1558545), (45, 935127), (81, 519515), (135, 311709), (405, 103903)]