686665642

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{239}}^1\times {\mathrm{110503}}^1$

素因数の和:110757

約数の個数: 16

約数和(自身を含む): 1113880320

約数和(自身を除く): 427214678

約数列:

[1, 2, 13, 26, 239, 478, 3107, 6214, 110503, 221006, 1436539, 2873078, 26410217, 52820434, 343332821, 686665642]

約数ペア:

[(1, 686665642), (2, 343332821), (13, 52820434), (26, 26410217), (239, 2873078), (478, 1436539), (3107, 221006), (6214, 110503)]