389747260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{2783909}}^1$

素因数の和:2783925

約数の個数: 24

約数和(自身を含む): 935393760

約数和(自身を除く): 545646500

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 2783909, 5567818, 11135636, 13919545, 19487363, 27839090, 38974726, 55678180, 77949452, 97436815, 194873630, 389747260]

約数ペア:

[(1, 389747260), (2, 194873630), (4, 97436815), (5, 77949452), (7, 55678180), (10, 38974726), (14, 27839090), (20, 19487363), (28, 13919545), (35, 11135636), (70, 5567818), (140, 2783909)]