205657709120

素因数分解:

$2^6\times 5^1\times {\mathrm{642680341}}^1$

素因数の和:642680358

約数の個数: 28

約数和(自身を含む): 489722420604

約数和(自身を除く): 284064711484

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 642680341, 1285360682, 2570721364, 3213401705, 5141442728, 6426803410, 10282885456, 12853606820, 20565770912, 25707213640, 41131541824, 51414427280, 102828854560, 205657709120]

約数ペア:

[(1, 205657709120), (2, 102828854560), (4, 51414427280), (5, 41131541824), (8, 25707213640), (10, 20565770912), (16, 12853606820), (20, 10282885456), (32, 6426803410), (40, 5141442728), (64, 3213401705), (80, 2570721364), (160, 1285360682), (320, 642680341)]