78813670

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{439}}^1\times {\mathrm{1381}}^1$

素因数の和:1840

約数の個数: 32

約数和(自身を含む): 153236160

約数和(自身を除く): 74422490

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 439, 878, 1381, 2195, 2762, 4390, 5707, 6905, 11414, 13810, 17953, 28535, 35906, 57070, 89765, 179530, 606259, 1212518, 3031295, 6062590, 7881367, 15762734, 39406835, 78813670]

約数ペア:

[(1, 78813670), (2, 39406835), (5, 15762734), (10, 7881367), (13, 6062590), (26, 3031295), (65, 1212518), (130, 606259), (439, 179530), (878, 89765), (1381, 57070), (2195, 35906), (2762, 28535), (4390, 17953), (5707, 13810), (6905, 11414)]