20346744500

素因数分解:

$2^2\times 5^3\times {\mathrm{83}}^1\times {\mathrm{490283}}^1$

素因数の和:490385

約数の個数: 48

約数和(自身を含む): 44972770752

約数和(自身を除く): 24626026252

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 83, 100, 125, 166, 250, 332, 415, 500, 830, 1660, 2075, 4150, 8300, 10375, 20750, 41500, 490283, 980566, 1961132, 2451415, 4902830, 9805660, 12257075, 24514150, 40693489, 49028300, 61285375, 81386978, 122570750, 162773956, 203467445, 245141500, 406934890, 813869780, 1017337225, 2034674450, 4069348900, 5086686125, 10173372250, 20346744500]

約数ペア:

[(1, 20346744500), (2, 10173372250), (4, 5086686125), (5, 4069348900), (10, 2034674450), (20, 1017337225), (25, 813869780), (50, 406934890), (83, 245141500), (100, 203467445), (125, 162773956), (166, 122570750), (250, 81386978), (332, 61285375), (415, 49028300), (500, 40693489), (830, 24514150), (1660, 12257075), (2075, 9805660), (4150, 4902830), (8300, 2451415), (10375, 1961132), (20750, 980566), (41500, 490283)]