256539332

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{398353}}^1$

素因数の和:398387

約数の個数: 24

約数和(自身を含む): 535387776

約数和(自身を除く): 278848444

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644, 398353, 796706, 1593412, 2788471, 5576942, 9162119, 11153884, 18324238, 36648476, 64134833, 128269666, 256539332]

約数ペア:

[(1, 256539332), (2, 128269666), (4, 64134833), (7, 36648476), (14, 18324238), (23, 11153884), (28, 9162119), (46, 5576942), (92, 2788471), (161, 1593412), (322, 796706), (644, 398353)]