20652580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79433}}^1$

素因数の和:79455

約数の個数: 24

約数和(自身を含む): 46707192

約数和(自身を除く): 26054612

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 79433, 158866, 317732, 397165, 794330, 1032629, 1588660, 2065258, 4130516, 5163145, 10326290, 20652580]

約数ペア:

[(1, 20652580), (2, 10326290), (4, 5163145), (5, 4130516), (10, 2065258), (13, 1588660), (20, 1032629), (26, 794330), (52, 397165), (65, 317732), (130, 158866), (260, 79433)]