208657870

素因数分解:

$2^1\times 5^1\times {\mathrm{661}}^1\times {\mathrm{31567}}^1$

素因数の和:32235

約数の個数: 16

約数和(自身を含む): 376164288

約数和(自身を除く): 167506418

約数列:

[1, 2, 5, 10, 661, 1322, 3305, 6610, 31567, 63134, 157835, 315670, 20865787, 41731574, 104328935, 208657870]

約数ペア:

[(1, 208657870), (2, 104328935), (5, 41731574), (10, 20865787), (661, 315670), (1322, 157835), (3305, 63134), (6610, 31567)]