2838380

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{1021}}^1$

素因数の和:1169

約数の個数: 24

約数和(自身を含む): 6009360

約数和(自身を除く): 3170980

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1021, 1390, 2042, 2780, 4084, 5105, 10210, 20420, 141919, 283838, 567676, 709595, 1419190, 2838380]

約数ペア:

[(1, 2838380), (2, 1419190), (4, 709595), (5, 567676), (10, 283838), (20, 141919), (139, 20420), (278, 10210), (556, 5105), (695, 4084), (1021, 2780), (1390, 2042)]