81870164

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{63367}}^1$

素因数の和:63407

約数の個数: 24

約数和(自身を含む): 159687360

約数和(自身を除く): 77817196

約数列:

[1, 2, 4, 17, 19, 34, 38, 68, 76, 323, 646, 1292, 63367, 126734, 253468, 1077239, 1203973, 2154478, 2407946, 4308956, 4815892, 20467541, 40935082, 81870164]

約数ペア:

[(1, 81870164), (2, 40935082), (4, 20467541), (17, 4815892), (19, 4308956), (34, 2407946), (38, 2154478), (68, 1203973), (76, 1077239), (323, 253468), (646, 126734), (1292, 63367)]