671488

素因数分解:

$2^8\times {\mathrm{43}}^1\times {\mathrm{61}}^1$

素因数の和:120

約数の個数: 36

約数和(自身を含む): 1394008

約数和(自身を除く): 722520

約数列:

[1, 2, 4, 8, 16, 32, 43, 61, 64, 86, 122, 128, 172, 244, 256, 344, 488, 688, 976, 1376, 1952, 2623, 2752, 3904, 5246, 5504, 7808, 10492, 11008, 15616, 20984, 41968, 83936, 167872, 335744, 671488]

約数ペア:

[(1, 671488), (2, 335744), (4, 167872), (8, 83936), (16, 41968), (32, 20984), (43, 15616), (61, 11008), (64, 10492), (86, 7808), (122, 5504), (128, 5246), (172, 3904), (244, 2752), (256, 2623), (344, 1952), (488, 1376), (688, 976)]