2581180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{179}}^1$

素因数の和:298

約数の個数: 48

約数和(自身を含む): 6289920

約数和(自身を除く): 3708740

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 103, 140, 179, 206, 358, 412, 515, 716, 721, 895, 1030, 1253, 1442, 1790, 2060, 2506, 2884, 3580, 3605, 5012, 6265, 7210, 12530, 14420, 18437, 25060, 36874, 73748, 92185, 129059, 184370, 258118, 368740, 516236, 645295, 1290590, 2581180]

約数ペア:

[(1, 2581180), (2, 1290590), (4, 645295), (5, 516236), (7, 368740), (10, 258118), (14, 184370), (20, 129059), (28, 92185), (35, 73748), (70, 36874), (103, 25060), (140, 18437), (179, 14420), (206, 12530), (358, 7210), (412, 6265), (515, 5012), (716, 3605), (721, 3580), (895, 2884), (1030, 2506), (1253, 2060), (1442, 1790)]