660520

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{337}}^1$

素因数の和:362

約数の個数: 48

約数和(自身を含む): 1733940

約数和(自身を除く): 1073420

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 337, 392, 490, 674, 980, 1348, 1685, 1960, 2359, 2696, 3370, 4718, 6740, 9436, 11795, 13480, 16513, 18872, 23590, 33026, 47180, 66052, 82565, 94360, 132104, 165130, 330260, 660520]

約数ペア:

[(1, 660520), (2, 330260), (4, 165130), (5, 132104), (7, 94360), (8, 82565), (10, 66052), (14, 47180), (20, 33026), (28, 23590), (35, 18872), (40, 16513), (49, 13480), (56, 11795), (70, 9436), (98, 6740), (140, 4718), (196, 3370), (245, 2696), (280, 2359), (337, 1960), (392, 1685), (490, 1348), (674, 980)]