257521408

素因数分解:

$2^8\times {\mathrm{139}}^1\times {\mathrm{7237}}^1$

素因数の和:7392

約数の個数: 36

約数和(自身を含む): 517806520

約数和(自身を除く): 260285112

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 139, 256, 278, 556, 1112, 2224, 4448, 7237, 8896, 14474, 17792, 28948, 35584, 57896, 115792, 231584, 463168, 926336, 1005943, 1852672, 2011886, 4023772, 8047544, 16095088, 32190176, 64380352, 128760704, 257521408]

約数ペア:

[(1, 257521408), (2, 128760704), (4, 64380352), (8, 32190176), (16, 16095088), (32, 8047544), (64, 4023772), (128, 2011886), (139, 1852672), (256, 1005943), (278, 926336), (556, 463168), (1112, 231584), (2224, 115792), (4448, 57896), (7237, 35584), (8896, 28948), (14474, 17792)]