12970790

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{103}}^1\times {\mathrm{257}}^1$

素因数の和:381

約数の個数: 48

約数和(自身を含む): 27529632

約数和(自身を除く): 14558842

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 103, 206, 245, 257, 490, 514, 515, 721, 1030, 1285, 1442, 1799, 2570, 3598, 3605, 5047, 7210, 8995, 10094, 12593, 17990, 25186, 25235, 26471, 50470, 52942, 62965, 125930, 132355, 185297, 264710, 370594, 926485, 1297079, 1852970, 2594158, 6485395, 12970790]

約数ペア:

[(1, 12970790), (2, 6485395), (5, 2594158), (7, 1852970), (10, 1297079), (14, 926485), (35, 370594), (49, 264710), (70, 185297), (98, 132355), (103, 125930), (206, 62965), (245, 52942), (257, 50470), (490, 26471), (514, 25235), (515, 25186), (721, 17990), (1030, 12593), (1285, 10094), (1442, 8995), (1799, 7210), (2570, 5047), (3598, 3605)]