209780476

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{89}}^1\times {\mathrm{2039}}^1$

素因数の和:2166

約数の個数: 36

約数和(自身を含む): 394556400

約数和(自身を除く): 184775924

約数列:

[1, 2, 4, 17, 34, 68, 89, 178, 289, 356, 578, 1156, 1513, 2039, 3026, 4078, 6052, 8156, 25721, 34663, 51442, 69326, 102884, 138652, 181471, 362942, 589271, 725884, 1178542, 2357084, 3085007, 6170014, 12340028, 52445119, 104890238, 209780476]

約数ペア:

[(1, 209780476), (2, 104890238), (4, 52445119), (17, 12340028), (34, 6170014), (68, 3085007), (89, 2357084), (178, 1178542), (289, 725884), (356, 589271), (578, 362942), (1156, 181471), (1513, 138652), (2039, 102884), (3026, 69326), (4078, 51442), (6052, 34663), (8156, 25721)]