289328840

素因数分解:

$2^3\times 5^1\times {\mathrm{281}}^1\times {\mathrm{25741}}^1$

素因数の和:26033

約数の個数: 32

約数和(自身を含む): 653331960

約数和(自身を除く): 364003120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 281, 562, 1124, 1405, 2248, 2810, 5620, 11240, 25741, 51482, 102964, 128705, 205928, 257410, 514820, 1029640, 7233221, 14466442, 28932884, 36166105, 57865768, 72332210, 144664420, 289328840]

約数ペア:

[(1, 289328840), (2, 144664420), (4, 72332210), (5, 57865768), (8, 36166105), (10, 28932884), (20, 14466442), (40, 7233221), (281, 1029640), (562, 514820), (1124, 257410), (1405, 205928), (2248, 128705), (2810, 102964), (5620, 51482), (11240, 25741)]