1245637540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{491}}^1\times {\mathrm{18121}}^1$

素因数の和:18628

約数の個数: 48

約数和(自身を含む): 2995784064

約数和(自身を除く): 1750146524

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 491, 982, 1964, 2455, 3437, 4910, 6874, 9820, 13748, 17185, 18121, 34370, 36242, 68740, 72484, 90605, 126847, 181210, 253694, 362420, 507388, 634235, 1268470, 2536940, 8897411, 17794822, 35589644, 44487055, 62281877, 88974110, 124563754, 177948220, 249127508, 311409385, 622818770, 1245637540]

約数ペア:

[(1, 1245637540), (2, 622818770), (4, 311409385), (5, 249127508), (7, 177948220), (10, 124563754), (14, 88974110), (20, 62281877), (28, 44487055), (35, 35589644), (70, 17794822), (140, 8897411), (491, 2536940), (982, 1268470), (1964, 634235), (2455, 507388), (3437, 362420), (4910, 253694), (6874, 181210), (9820, 126847), (13748, 90605), (17185, 72484), (18121, 68740), (34370, 36242)]