2945180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{193}}^1$

素因数の和:318

約数の個数: 48

約数和(自身を含む): 7170240

約数和(自身を除く): 4225060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 109, 140, 193, 218, 386, 436, 545, 763, 772, 965, 1090, 1351, 1526, 1930, 2180, 2702, 3052, 3815, 3860, 5404, 6755, 7630, 13510, 15260, 21037, 27020, 42074, 84148, 105185, 147259, 210370, 294518, 420740, 589036, 736295, 1472590, 2945180]

約数ペア:

[(1, 2945180), (2, 1472590), (4, 736295), (5, 589036), (7, 420740), (10, 294518), (14, 210370), (20, 147259), (28, 105185), (35, 84148), (70, 42074), (109, 27020), (140, 21037), (193, 15260), (218, 13510), (386, 7630), (436, 6755), (545, 5404), (763, 3860), (772, 3815), (965, 3052), (1090, 2702), (1351, 2180), (1526, 1930)]