80921920

素因数分解:

$2^6\times 5^1\times {\mathrm{252881}}^1$

素因数の和:252898

約数の個数: 28

約数和(自身を含む): 192696084

約数和(自身を除く): 111774164

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 252881, 505762, 1011524, 1264405, 2023048, 2528810, 4046096, 5057620, 8092192, 10115240, 16184384, 20230480, 40460960, 80921920]

約数ペア:

[(1, 80921920), (2, 40460960), (4, 20230480), (5, 16184384), (8, 10115240), (10, 8092192), (16, 5057620), (20, 4046096), (32, 2528810), (40, 2023048), (64, 1264405), (80, 1011524), (160, 505762), (320, 252881)]