81347564

素因数分解:

$2^2\times {\mathrm{79}}^1\times {\mathrm{127}}^1\times {\mathrm{2027}}^1$

素因数の和:2237

約数の個数: 24

約数和(自身を含む): 145367040

約数和(自身を除く): 64019476

約数列:

[1, 2, 4, 79, 127, 158, 254, 316, 508, 2027, 4054, 8108, 10033, 20066, 40132, 160133, 257429, 320266, 514858, 640532, 1029716, 20336891, 40673782, 81347564]

約数ペア:

[(1, 81347564), (2, 40673782), (4, 20336891), (79, 1029716), (127, 640532), (158, 514858), (254, 320266), (316, 257429), (508, 160133), (2027, 40132), (4054, 20066), (8108, 10033)]