66716780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{256603}}^1$

素因数の和:256625

約数の個数: 24

約数和(自身を含む): 150883152

約数和(自身を除く): 84166372

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 256603, 513206, 1026412, 1283015, 2566030, 3335839, 5132060, 6671678, 13343356, 16679195, 33358390, 66716780]

約数ペア:

[(1, 66716780), (2, 33358390), (4, 16679195), (5, 13343356), (10, 6671678), (13, 5132060), (20, 3335839), (26, 2566030), (52, 1283015), (65, 1026412), (130, 513206), (260, 256603)]