28256920

素因数分解:

$2^3\times 5^1\times {\mathrm{293}}^1\times {\mathrm{2411}}^1$

素因数の和:2715

約数の個数: 32

約数和(自身を含む): 63821520

約数和(自身を除く): 35564600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 293, 586, 1172, 1465, 2344, 2411, 2930, 4822, 5860, 9644, 11720, 12055, 19288, 24110, 48220, 96440, 706423, 1412846, 2825692, 3532115, 5651384, 7064230, 14128460, 28256920]

約数ペア:

[(1, 28256920), (2, 14128460), (4, 7064230), (5, 5651384), (8, 3532115), (10, 2825692), (20, 1412846), (40, 706423), (293, 96440), (586, 48220), (1172, 24110), (1465, 19288), (2344, 12055), (2411, 11720), (2930, 9644), (4822, 5860)]