720974774

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{259157}}^1$

素因数の和:259279

約数の個数: 16

約数和(自身を含む): 1175540688

約数和(自身を除く): 454565914

約数列:

[1, 2, 13, 26, 107, 214, 1391, 2782, 259157, 518314, 3369041, 6738082, 27729799, 55459598, 360487387, 720974774]

約数ペア:

[(1, 720974774), (2, 360487387), (13, 55459598), (26, 27729799), (107, 6738082), (214, 3369041), (1391, 518314), (2782, 259157)]