201717820

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{438517}}^1$

素因数の和:438549

約数の個数: 24

約数和(自身を含む): 442026144

約数和(自身を除く): 240308324

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 438517, 877034, 1754068, 2192585, 4385170, 8770340, 10085891, 20171782, 40343564, 50429455, 100858910, 201717820]

約数ペア:

[(1, 201717820), (2, 100858910), (4, 50429455), (5, 40343564), (10, 20171782), (20, 10085891), (23, 8770340), (46, 4385170), (92, 2192585), (115, 1754068), (230, 877034), (460, 438517)]