2728460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19489}}^1$

素因数の和:19505

約数の個数: 24

約数和(自身を含む): 6548640

約数和(自身を除く): 3820180

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 19489, 38978, 77956, 97445, 136423, 194890, 272846, 389780, 545692, 682115, 1364230, 2728460]

約数ペア:

[(1, 2728460), (2, 1364230), (4, 682115), (5, 545692), (7, 389780), (10, 272846), (14, 194890), (20, 136423), (28, 97445), (35, 77956), (70, 38978), (140, 19489)]