640268384

素因数分解:

$2^5\times 7^1\times {\mathrm{19}}^1\times {\mathrm{150439}}^1$

素因数の和:150475

約数の個数: 48

約数和(自身を含む): 1516435200

約数和(自身を除く): 876166816

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 32, 38, 56, 76, 112, 133, 152, 224, 266, 304, 532, 608, 1064, 2128, 4256, 150439, 300878, 601756, 1053073, 1203512, 2106146, 2407024, 2858341, 4212292, 4814048, 5716682, 8424584, 11433364, 16849168, 20008387, 22866728, 33698336, 40016774, 45733456, 80033548, 91466912, 160067096, 320134192, 640268384]

約数ペア:

[(1, 640268384), (2, 320134192), (4, 160067096), (7, 91466912), (8, 80033548), (14, 45733456), (16, 40016774), (19, 33698336), (28, 22866728), (32, 20008387), (38, 16849168), (56, 11433364), (76, 8424584), (112, 5716682), (133, 4814048), (152, 4212292), (224, 2858341), (266, 2407024), (304, 2106146), (532, 1203512), (608, 1053073), (1064, 601756), (2128, 300878), (4256, 150439)]