1288898

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{557}}^1$

素因数の和:661

約数の個数: 16

約数和(自身を含む): 2109240

約数和(自身を除く): 820342

約数列:

[1, 2, 13, 26, 89, 178, 557, 1114, 1157, 2314, 7241, 14482, 49573, 99146, 644449, 1288898]

約数ペア:

[(1, 1288898), (2, 644449), (13, 99146), (26, 49573), (89, 14482), (178, 7241), (557, 2314), (1114, 1157)]