2820685

素因数分解:

$5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{397}}^1$

素因数の和:445

約数の個数: 24

約数和(自身を含む): 4083480

約数和(自身を除く): 1262795

約数列:

[1, 5, 7, 29, 35, 49, 145, 203, 245, 397, 1015, 1421, 1985, 2779, 7105, 11513, 13895, 19453, 57565, 80591, 97265, 402955, 564137, 2820685]

約数ペア:

[(1, 2820685), (5, 564137), (7, 402955), (29, 97265), (35, 80591), (49, 57565), (145, 19453), (203, 13895), (245, 11513), (397, 7105), (1015, 2779), (1421, 1985)]