28104580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{1949}}^1$

素因数の和:2068

約数の個数: 48

約数和(自身を含む): 68140800

約数和(自身を除く): 40036220

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 103, 140, 206, 412, 515, 721, 1030, 1442, 1949, 2060, 2884, 3605, 3898, 7210, 7796, 9745, 13643, 14420, 19490, 27286, 38980, 54572, 68215, 136430, 200747, 272860, 401494, 802988, 1003735, 1405229, 2007470, 2810458, 4014940, 5620916, 7026145, 14052290, 28104580]

約数ペア:

[(1, 28104580), (2, 14052290), (4, 7026145), (5, 5620916), (7, 4014940), (10, 2810458), (14, 2007470), (20, 1405229), (28, 1003735), (35, 802988), (70, 401494), (103, 272860), (140, 200747), (206, 136430), (412, 68215), (515, 54572), (721, 38980), (1030, 27286), (1442, 19490), (1949, 14420), (2060, 13643), (2884, 9745), (3605, 7796), (3898, 7210)]