262727145

素因数分解:

$3^4\times 5^1\times {\mathrm{648709}}^1$

素因数の和:648726

約数の個数: 20

約数和(自身を含む): 470963460

約数和(自身を除く): 208236315

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 648709, 1946127, 3243545, 5838381, 9730635, 17515143, 29191905, 52545429, 87575715, 262727145]

約数ペア:

[(1, 262727145), (3, 87575715), (5, 52545429), (9, 29191905), (15, 17515143), (27, 9730635), (45, 5838381), (81, 3243545), (135, 1946127), (405, 648709)]