28173665

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{2909}}^1$

素因数の和:3076

約数の個数: 16

約数和(自身を含む): 36666000

約数和(自身を除く): 8492335

約数列:

[1, 5, 13, 65, 149, 745, 1937, 2909, 9685, 14545, 37817, 189085, 433441, 2167205, 5634733, 28173665]

約数ペア:

[(1, 28173665), (5, 5634733), (13, 2167205), (65, 433441), (149, 189085), (745, 37817), (1937, 14545), (2909, 9685)]