28421210

素因数分解:

$2^1\times 5^1\times {\mathrm{379}}^1\times {\mathrm{7499}}^1$

素因数の和:7885

約数の個数: 16

約数和(自身を含む): 51300000

約数和(自身を除く): 22878790

約数列:

[1, 2, 5, 10, 379, 758, 1895, 3790, 7499, 14998, 37495, 74990, 2842121, 5684242, 14210605, 28421210]

約数ペア:

[(1, 28421210), (2, 14210605), (5, 5684242), (10, 2842121), (379, 74990), (758, 37495), (1895, 14998), (3790, 7499)]