858678860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{254047}}^1$

素因数の和:254082

約数の個数: 36

約数和(自身を含む): 1952612928

約数和(自身を除く): 1093934068

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 254047, 508094, 1016188, 1270235, 2540470, 3302611, 5080940, 6605222, 13210444, 16513055, 33026110, 42933943, 66052220, 85867886, 171735772, 214669715, 429339430, 858678860]

約数ペア:

[(1, 858678860), (2, 429339430), (4, 214669715), (5, 171735772), (10, 85867886), (13, 66052220), (20, 42933943), (26, 33026110), (52, 16513055), (65, 13210444), (130, 6605222), (169, 5080940), (260, 3302611), (338, 2540470), (676, 1270235), (845, 1016188), (1690, 508094), (3380, 254047)]