2498980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{307}}^1$

素因数の和:364

約数の個数: 48

約数和(自身を含む): 5898816

約数和(自身を除く): 3399836

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 37, 44, 55, 74, 110, 148, 185, 220, 307, 370, 407, 614, 740, 814, 1228, 1535, 1628, 2035, 3070, 3377, 4070, 6140, 6754, 8140, 11359, 13508, 16885, 22718, 33770, 45436, 56795, 67540, 113590, 124949, 227180, 249898, 499796, 624745, 1249490, 2498980]

約数ペア:

[(1, 2498980), (2, 1249490), (4, 624745), (5, 499796), (10, 249898), (11, 227180), (20, 124949), (22, 113590), (37, 67540), (44, 56795), (55, 45436), (74, 33770), (110, 22718), (148, 16885), (185, 13508), (220, 11359), (307, 8140), (370, 6754), (407, 6140), (614, 4070), (740, 3377), (814, 3070), (1228, 2035), (1535, 1628)]