639087344

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{300323}}^1$

素因数の和:300357

約数の個数: 40

約数和(自身を含む): 1489607040

約数和(自身を除く): 850519696

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 56, 76, 112, 133, 152, 266, 304, 532, 1064, 2128, 300323, 600646, 1201292, 2102261, 2402584, 4204522, 4805168, 5706137, 8409044, 11412274, 16818088, 22824548, 33636176, 39942959, 45649096, 79885918, 91298192, 159771836, 319543672, 639087344]

約数ペア:

[(1, 639087344), (2, 319543672), (4, 159771836), (7, 91298192), (8, 79885918), (14, 45649096), (16, 39942959), (19, 33636176), (28, 22824548), (38, 16818088), (56, 11412274), (76, 8409044), (112, 5706137), (133, 4805168), (152, 4204522), (266, 2402584), (304, 2102261), (532, 1201292), (1064, 600646), (2128, 300323)]