20195756

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{439}}^1$

素因数の和:534

約数の個数: 48

約数和(自身を含む): 42577920

約数和(自身を除く): 22382164

約数列:

[1, 2, 4, 7, 14, 28, 31, 53, 62, 106, 124, 212, 217, 371, 434, 439, 742, 868, 878, 1484, 1643, 1756, 3073, 3286, 6146, 6572, 11501, 12292, 13609, 23002, 23267, 27218, 46004, 46534, 54436, 93068, 95263, 162869, 190526, 325738, 381052, 651476, 721277, 1442554, 2885108, 5048939, 10097878, 20195756]

約数ペア:

[(1, 20195756), (2, 10097878), (4, 5048939), (7, 2885108), (14, 1442554), (28, 721277), (31, 651476), (53, 381052), (62, 325738), (106, 190526), (124, 162869), (212, 95263), (217, 93068), (371, 54436), (434, 46534), (439, 46004), (742, 27218), (868, 23267), (878, 23002), (1484, 13609), (1643, 12292), (1756, 11501), (3073, 6572), (3286, 6146)]