80680960

素因数分解:

$2^{11}\times 5^1\times {\mathrm{7879}}^1$

素因数の和:7906

約数の個数: 48

約数和(自身を含む): 193611600

約数和(自身を除く): 112930640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2048, 2560, 5120, 7879, 10240, 15758, 31516, 39395, 63032, 78790, 126064, 157580, 252128, 315160, 504256, 630320, 1008512, 1260640, 2017024, 2521280, 4034048, 5042560, 8068096, 10085120, 16136192, 20170240, 40340480, 80680960]

約数ペア:

[(1, 80680960), (2, 40340480), (4, 20170240), (5, 16136192), (8, 10085120), (10, 8068096), (16, 5042560), (20, 4034048), (32, 2521280), (40, 2017024), (64, 1260640), (80, 1008512), (128, 630320), (160, 504256), (256, 315160), (320, 252128), (512, 157580), (640, 126064), (1024, 78790), (1280, 63032), (2048, 39395), (2560, 31516), (5120, 15758), (7879, 10240)]