205156780

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^2\times {\mathrm{19391}}^1$

素因数の和:19446

約数の個数: 36

約数和(自身を含む): 450398592

約数和(自身を除く): 245241812

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 529, 1058, 2116, 2645, 5290, 10580, 19391, 38782, 77564, 96955, 193910, 387820, 445993, 891986, 1783972, 2229965, 4459930, 8919860, 10257839, 20515678, 41031356, 51289195, 102578390, 205156780]

約数ペア:

[(1, 205156780), (2, 102578390), (4, 51289195), (5, 41031356), (10, 20515678), (20, 10257839), (23, 8919860), (46, 4459930), (92, 2229965), (115, 1783972), (230, 891986), (460, 445993), (529, 387820), (1058, 193910), (2116, 96955), (2645, 77564), (5290, 38782), (10580, 19391)]