218328290

素因数分解:

$2^1\times 5^1\times {\mathrm{409}}^1\times {\mathrm{53381}}^1$

素因数の和:53797

約数の個数: 16

約数和(自身を含む): 393959160

約数和(自身を除く): 175630870

約数列:

[1, 2, 5, 10, 409, 818, 2045, 4090, 53381, 106762, 266905, 533810, 21832829, 43665658, 109164145, 218328290]

約数ペア:

[(1, 218328290), (2, 109164145), (5, 43665658), (10, 21832829), (409, 533810), (818, 266905), (2045, 106762), (4090, 53381)]