256475590

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{401}}^1\times {\mathrm{9137}}^1$

素因数の和:9552

約数の個数: 32

約数和(自身を含む): 528980544

約数和(自身を除く): 272504954

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 401, 802, 2005, 2807, 4010, 5614, 9137, 14035, 18274, 28070, 45685, 63959, 91370, 127918, 319795, 639590, 3663937, 7327874, 18319685, 25647559, 36639370, 51295118, 128237795, 256475590]

約数ペア:

[(1, 256475590), (2, 128237795), (5, 51295118), (7, 36639370), (10, 25647559), (14, 18319685), (35, 7327874), (70, 3663937), (401, 639590), (802, 319795), (2005, 127918), (2807, 91370), (4010, 63959), (5614, 45685), (9137, 28070), (14035, 18274)]