81057788

素因数分解:

$2^2\times 7^1\times {\mathrm{149}}^1\times {\mathrm{19429}}^1$

素因数の和:19589

約数の個数: 24

約数和(自身を含む): 163212000

約数和(自身を除く): 82154212

約数列:

[1, 2, 4, 7, 14, 28, 149, 298, 596, 1043, 2086, 4172, 19429, 38858, 77716, 136003, 272006, 544012, 2894921, 5789842, 11579684, 20264447, 40528894, 81057788]

約数ペア:

[(1, 81057788), (2, 40528894), (4, 20264447), (7, 11579684), (14, 5789842), (28, 2894921), (149, 544012), (298, 272006), (596, 136003), (1043, 77716), (2086, 38858), (4172, 19429)]