78897820

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{171517}}^1$

素因数の和:171549

約数の個数: 24

約数和(自身を含む): 172890144

約数和(自身を除く): 93992324

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 171517, 343034, 686068, 857585, 1715170, 3430340, 3944891, 7889782, 15779564, 19724455, 39448910, 78897820]

約数ペア:

[(1, 78897820), (2, 39448910), (4, 19724455), (5, 15779564), (10, 7889782), (20, 3944891), (23, 3430340), (46, 1715170), (92, 857585), (115, 686068), (230, 343034), (460, 171517)]