80430440

素因数分解:

$2^3\times 5^1\times {\mathrm{251}}^1\times {\mathrm{8011}}^1$

素因数の和:8273

約数の個数: 32

約数和(自身を含む): 181712160

約数和(自身を除く): 101281720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 251, 502, 1004, 1255, 2008, 2510, 5020, 8011, 10040, 16022, 32044, 40055, 64088, 80110, 160220, 320440, 2010761, 4021522, 8043044, 10053805, 16086088, 20107610, 40215220, 80430440]

約数ペア:

[(1, 80430440), (2, 40215220), (4, 20107610), (5, 16086088), (8, 10053805), (10, 8043044), (20, 4021522), (40, 2010761), (251, 320440), (502, 160220), (1004, 80110), (1255, 64088), (2008, 40055), (2510, 32044), (5020, 16022), (8011, 10040)]