163920185

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{3229}}^1$

素因数の和:3329

約数の個数: 32

約数和(自身を含む): 234420480

約数和(自身を除く): 70500295

約数列:

[1, 5, 11, 13, 55, 65, 71, 143, 355, 715, 781, 923, 3229, 3905, 4615, 10153, 16145, 35519, 41977, 50765, 177595, 209885, 229259, 461747, 1146295, 2308735, 2521849, 2980367, 12609245, 14901835, 32784037, 163920185]

約数ペア:

[(1, 163920185), (5, 32784037), (11, 14901835), (13, 12609245), (55, 2980367), (65, 2521849), (71, 2308735), (143, 1146295), (355, 461747), (715, 229259), (781, 209885), (923, 177595), (3229, 50765), (3905, 41977), (4615, 35519), (10153, 16145)]