20791130

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{1499}}^1$

素因数の和:1598

約数の個数: 32

約数和(自身を含む): 39960000

約数和(自身を除く): 19168870

約数列:

[1, 2, 5, 10, 19, 38, 73, 95, 146, 190, 365, 730, 1387, 1499, 2774, 2998, 6935, 7495, 13870, 14990, 28481, 56962, 109427, 142405, 218854, 284810, 547135, 1094270, 2079113, 4158226, 10395565, 20791130]

約数ペア:

[(1, 20791130), (2, 10395565), (5, 4158226), (10, 2079113), (19, 1094270), (38, 547135), (73, 284810), (95, 218854), (146, 142405), (190, 109427), (365, 56962), (730, 28481), (1387, 14990), (1499, 13870), (2774, 7495), (2998, 6935)]