2805005

素因数分解:

$5^1\times 7^2\times {\mathrm{107}}^2$

素因数の和:233

約数の個数: 18

約数和(自身を含む): 3952494

約数和(自身を除く): 1147489

約数列:

[1, 5, 7, 35, 49, 107, 245, 535, 749, 3745, 5243, 11449, 26215, 57245, 80143, 400715, 561001, 2805005]

約数ペア:

[(1, 2805005), (5, 561001), (7, 400715), (35, 80143), (49, 57245), (107, 26215), (245, 11449), (535, 5243), (749, 3745)]