20170240

素因数分解:

$2^9\times 5^1\times {\mathrm{7879}}^1$

素因数の和:7902

約数の個数: 40

約数和(自身を含む): 48367440

約数和(自身を除く): 28197200

約数列:

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

約数ペア:

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