639293362

素因数分解:

$2^1\times {\mathrm{127}}^1\times {\mathrm{131}}^1\times {\mathrm{19213}}^1$

素因数の和:19473

約数の個数: 16

約数和(自身を含む): 973919232

約数和(自身を除く): 334625870

約数列:

[1, 2, 127, 131, 254, 262, 16637, 19213, 33274, 38426, 2440051, 2516903, 4880102, 5033806, 319646681, 639293362]

約数ペア:

[(1, 639293362), (2, 319646681), (127, 5033806), (131, 4880102), (254, 2516903), (262, 2440051), (16637, 38426), (19213, 33274)]