178260020

素因数分解:

$2^2\times 5^1\times {\mathrm{1283}}^1\times {\mathrm{6947}}^1$

素因数の和:8239

約数の個数: 24

約数和(自身を含む): 374691744

約数和(自身を除く): 196431724

約数列:

[1, 2, 4, 5, 10, 20, 1283, 2566, 5132, 6415, 6947, 12830, 13894, 25660, 27788, 34735, 69470, 138940, 8913001, 17826002, 35652004, 44565005, 89130010, 178260020]

約数ペア:

[(1, 178260020), (2, 89130010), (4, 44565005), (5, 35652004), (10, 17826002), (20, 8913001), (1283, 138940), (2566, 69470), (5132, 34735), (6415, 27788), (6947, 25660), (12830, 13894)]