256280416

素因数分解:

$2^5\times 7^1\times {\mathrm{139}}^1\times {\mathrm{8231}}^1$

素因数の和:8387

約数の個数: 48

約数和(自身を含む): 580849920

約数和(自身を除く): 324569504

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 139, 224, 278, 556, 973, 1112, 1946, 2224, 3892, 4448, 7784, 8231, 15568, 16462, 31136, 32924, 57617, 65848, 115234, 131696, 230468, 263392, 460936, 921872, 1144109, 1843744, 2288218, 4576436, 8008763, 9152872, 16017526, 18305744, 32035052, 36611488, 64070104, 128140208, 256280416]

約数ペア:

[(1, 256280416), (2, 128140208), (4, 64070104), (7, 36611488), (8, 32035052), (14, 18305744), (16, 16017526), (28, 9152872), (32, 8008763), (56, 4576436), (112, 2288218), (139, 1843744), (224, 1144109), (278, 921872), (556, 460936), (973, 263392), (1112, 230468), (1946, 131696), (2224, 115234), (3892, 65848), (4448, 57617), (7784, 32924), (8231, 31136), (15568, 16462)]