20110220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{77347}}^1$

素因数の和:77369

約数の個数: 24

約数和(自身を含む): 45480624

約数和(自身を除く): 25370404

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 77347, 154694, 309388, 386735, 773470, 1005511, 1546940, 2011022, 4022044, 5027555, 10055110, 20110220]

約数ペア:

[(1, 20110220), (2, 10055110), (4, 5027555), (5, 4022044), (10, 2011022), (13, 1546940), (20, 1005511), (26, 773470), (52, 386735), (65, 309388), (130, 154694), (260, 77347)]