80407720

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{69317}}^1$

素因数の和:69357

約数の個数: 32

約数和(自身を含む): 187158600

約数和(自身を除く): 106750880

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 69317, 138634, 277268, 346585, 554536, 693170, 1386340, 2010193, 2772680, 4020386, 8040772, 10050965, 16081544, 20101930, 40203860, 80407720]

約数ペア:

[(1, 80407720), (2, 40203860), (4, 20101930), (5, 16081544), (8, 10050965), (10, 8040772), (20, 4020386), (29, 2772680), (40, 2010193), (58, 1386340), (116, 693170), (145, 554536), (232, 346585), (290, 277268), (580, 138634), (1160, 69317)]