128126464

素因数分解:

$2^9\times {\mathrm{251}}^1\times {\mathrm{997}}^1$

素因数の和:1266

約数の個数: 40

約数和(自身を含む): 257280408

約数和(自身を除く): 129153944

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 251, 256, 502, 512, 997, 1004, 1994, 2008, 3988, 4016, 7976, 8032, 15952, 16064, 31904, 32128, 63808, 64256, 127616, 128512, 250247, 255232, 500494, 510464, 1000988, 2001976, 4003952, 8007904, 16015808, 32031616, 64063232, 128126464]

約数ペア:

[(1, 128126464), (2, 64063232), (4, 32031616), (8, 16015808), (16, 8007904), (32, 4003952), (64, 2001976), (128, 1000988), (251, 510464), (256, 500494), (502, 255232), (512, 250247), (997, 128512), (1004, 127616), (1994, 64256), (2008, 63808), (3988, 32128), (4016, 31904), (7976, 16064), (8032, 15952)]