28309060

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{108881}}^1$

素因数の和:108903

約数の個数: 24

約数和(自身を含む): 64022616

約数和(自身を除く): 35713556

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 108881, 217762, 435524, 544405, 1088810, 1415453, 2177620, 2830906, 5661812, 7077265, 14154530, 28309060]

約数ペア:

[(1, 28309060), (2, 14154530), (4, 7077265), (5, 5661812), (10, 2830906), (13, 2177620), (20, 1415453), (26, 1088810), (52, 544405), (65, 435524), (130, 217762), (260, 108881)]