67890380

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{24421}}^1$

素因数の和:24569

約数の個数: 24

約数和(自身を含む): 143601360

約数和(自身を除く): 75710980

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 24421, 48842, 97684, 122105, 244210, 488420, 3394519, 6789038, 13578076, 16972595, 33945190, 67890380]

約数ペア:

[(1, 67890380), (2, 33945190), (4, 16972595), (5, 13578076), (10, 6789038), (20, 3394519), (139, 488420), (278, 244210), (556, 122105), (695, 97684), (1390, 48842), (2780, 24421)]