161799770

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{20717}}^1$

素因数の和:20806

約数の個数: 32

約数和(自身を含む): 322206336

約数和(自身を除く): 160406566

約数列:

[1, 2, 5, 10, 11, 22, 55, 71, 110, 142, 355, 710, 781, 1562, 3905, 7810, 20717, 41434, 103585, 207170, 227887, 455774, 1139435, 1470907, 2278870, 2941814, 7354535, 14709070, 16179977, 32359954, 80899885, 161799770]

約数ペア:

[(1, 161799770), (2, 80899885), (5, 32359954), (10, 16179977), (11, 14709070), (22, 7354535), (55, 2941814), (71, 2278870), (110, 1470907), (142, 1139435), (355, 455774), (710, 227887), (781, 207170), (1562, 103585), (3905, 41434), (7810, 20717)]