7943380

素因数分解:

$2^2\times 5^1\times {\mathrm{389}}^1\times {\mathrm{1021}}^1$

素因数の和:1419

約数の個数: 24

約数和(自身を含む): 16740360

約数和(自身を除く): 8796980

約数列:

[1, 2, 4, 5, 10, 20, 389, 778, 1021, 1556, 1945, 2042, 3890, 4084, 5105, 7780, 10210, 20420, 397169, 794338, 1588676, 1985845, 3971690, 7943380]

約数ペア:

[(1, 7943380), (2, 3971690), (4, 1985845), (5, 1588676), (10, 794338), (20, 397169), (389, 20420), (778, 10210), (1021, 7780), (1556, 5105), (1945, 4084), (2042, 3890)]