2581460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{18439}}^1$

素因数の和:18455

約数の個数: 24

約数和(自身を含む): 6195840

約数和(自身を除く): 3614380

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 18439, 36878, 73756, 92195, 129073, 184390, 258146, 368780, 516292, 645365, 1290730, 2581460]

約数ペア:

[(1, 2581460), (2, 1290730), (4, 645365), (5, 516292), (7, 368780), (10, 258146), (14, 184390), (20, 129073), (28, 92195), (35, 73756), (70, 36878), (140, 18439)]