27697820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{72889}}^1$

素因数の和:72917

約数の個数: 24

約数和(自身を含む): 61227600

約数和(自身を除く): 33529780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 72889, 145778, 291556, 364445, 728890, 1384891, 1457780, 2769782, 5539564, 6924455, 13848910, 27697820]

約数ペア:

[(1, 27697820), (2, 13848910), (4, 6924455), (5, 5539564), (10, 2769782), (19, 1457780), (20, 1384891), (38, 728890), (76, 364445), (95, 291556), (190, 145778), (380, 72889)]