257989312

素因数分解:

$2^6\times 7^2\times {\mathrm{82267}}^1$

素因数の和:82293

約数の個数: 42

約数和(自身を含む): 595538052

約数和(自身を除く): 337548740

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 196, 224, 392, 448, 784, 1568, 3136, 82267, 164534, 329068, 575869, 658136, 1151738, 1316272, 2303476, 2632544, 4031083, 4606952, 5265088, 8062166, 9213904, 16124332, 18427808, 32248664, 36855616, 64497328, 128994656, 257989312]

約数ペア:

[(1, 257989312), (2, 128994656), (4, 64497328), (7, 36855616), (8, 32248664), (14, 18427808), (16, 16124332), (28, 9213904), (32, 8062166), (49, 5265088), (56, 4606952), (64, 4031083), (98, 2632544), (112, 2303476), (196, 1316272), (224, 1151738), (392, 658136), (448, 575869), (784, 329068), (1568, 164534), (3136, 82267)]