20553910

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{709}}^1$

素因数の和:952

約数の個数: 32

約数和(自身を含む): 40078080

約数和(自身を除く): 19524170

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 223, 446, 709, 1115, 1418, 2230, 2899, 3545, 5798, 7090, 9217, 14495, 18434, 28990, 46085, 92170, 158107, 316214, 790535, 1581070, 2055391, 4110782, 10276955, 20553910]

約数ペア:

[(1, 20553910), (2, 10276955), (5, 4110782), (10, 2055391), (13, 1581070), (26, 790535), (65, 316214), (130, 158107), (223, 92170), (446, 46085), (709, 28990), (1115, 18434), (1418, 14495), (2230, 9217), (2899, 7090), (3545, 5798)]