20805798

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{139}}^1$

素因数の和:277

約数の個数: 64

約数和(自身を含む): 47980800

約数和(自身を除く): 27175002

約数列:

[1, 2, 3, 6, 13, 19, 26, 38, 39, 57, 78, 101, 114, 139, 202, 247, 278, 303, 417, 494, 606, 741, 834, 1313, 1482, 1807, 1919, 2626, 2641, 3614, 3838, 3939, 5282, 5421, 5757, 7878, 7923, 10842, 11514, 14039, 15846, 24947, 28078, 34333, 42117, 49894, 68666, 74841, 84234, 102999, 149682, 182507, 205998, 266741, 365014, 533482, 547521, 800223, 1095042, 1600446, 3467633, 6935266, 10402899, 20805798]

約数ペア:

[(1, 20805798), (2, 10402899), (3, 6935266), (6, 3467633), (13, 1600446), (19, 1095042), (26, 800223), (38, 547521), (39, 533482), (57, 365014), (78, 266741), (101, 205998), (114, 182507), (139, 149682), (202, 102999), (247, 84234), (278, 74841), (303, 68666), (417, 49894), (494, 42117), (606, 34333), (741, 28078), (834, 24947), (1313, 15846), (1482, 14039), (1807, 11514), (1919, 10842), (2626, 7923), (2641, 7878), (3614, 5757), (3838, 5421), (3939, 5282)]