80856740

素因数分解:

$2^2\times 5^1\times {\mathrm{173}}^1\times {\mathrm{23369}}^1$

素因数の和:23551

約数の個数: 24

約数和(自身を含む): 170787960

約数和(自身を除く): 89931220

約数列:

[1, 2, 4, 5, 10, 20, 173, 346, 692, 865, 1730, 3460, 23369, 46738, 93476, 116845, 233690, 467380, 4042837, 8085674, 16171348, 20214185, 40428370, 80856740]

約数ペア:

[(1, 80856740), (2, 40428370), (4, 20214185), (5, 16171348), (10, 8085674), (20, 4042837), (173, 467380), (346, 233690), (692, 116845), (865, 93476), (1730, 46738), (3460, 23369)]