169997788

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{117727}}^1$

素因数の和:117769

約数の個数: 18

約数和(自身を含む): 313980576

約数和(自身を除く): 143982788

約数列:

[1, 2, 4, 19, 38, 76, 361, 722, 1444, 117727, 235454, 470908, 2236813, 4473626, 8947252, 42499447, 84998894, 169997788]

約数ペア:

[(1, 169997788), (2, 84998894), (4, 42499447), (19, 8947252), (38, 4473626), (76, 2236813), (361, 470908), (722, 235454), (1444, 117727)]