19971680

素因数分解:

$2^5\times 5^1\times {\mathrm{124823}}^1$

素因数の和:124838

約数の個数: 24

約数和(自身を含む): 47183472

約数和(自身を除く): 27211792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 124823, 249646, 499292, 624115, 998584, 1248230, 1997168, 2496460, 3994336, 4992920, 9985840, 19971680]

約数ペア:

[(1, 19971680), (2, 9985840), (4, 4992920), (5, 3994336), (8, 2496460), (10, 1997168), (16, 1248230), (20, 998584), (32, 624115), (40, 499292), (80, 249646), (160, 124823)]