25205404

素因数分解:

$2^2\times 7^2\times {\mathrm{128599}}^1$

素因数の和:128617

約数の個数: 18

約数和(自身を含む): 51311400

約数和(自身を除く): 26105996

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 128599, 257198, 514396, 900193, 1800386, 3600772, 6301351, 12602702, 25205404]

約数ペア:

[(1, 25205404), (2, 12602702), (4, 6301351), (7, 3600772), (14, 1800386), (28, 900193), (49, 514396), (98, 257198), (196, 128599)]