640730494

素因数分解:

$2^1\times {\mathrm{127}}^1\times {\mathrm{1103}}^1\times {\mathrm{2287}}^1$

素因数の和:3519

約数の個数: 16

約数和(自身を含む): 969965568

約数和(自身を除く): 329235074

約数列:

[1, 2, 127, 254, 1103, 2206, 2287, 4574, 140081, 280162, 290449, 580898, 2522561, 5045122, 320365247, 640730494]

約数ペア:

[(1, 640730494), (2, 320365247), (127, 5045122), (254, 2522561), (1103, 580898), (2206, 290449), (2287, 280162), (4574, 140081)]