1280510

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1663}}^1$

素因数の和:1688

約数の個数: 32

約数和(自身を含む): 2875392

約数和(自身を除く): 1594882

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 154, 385, 770, 1663, 3326, 8315, 11641, 16630, 18293, 23282, 36586, 58205, 91465, 116410, 128051, 182930, 256102, 640255, 1280510]

約数ペア:

[(1, 1280510), (2, 640255), (5, 256102), (7, 182930), (10, 128051), (11, 116410), (14, 91465), (22, 58205), (35, 36586), (55, 23282), (70, 18293), (77, 16630), (110, 11641), (154, 8315), (385, 3326), (770, 1663)]