20178984008

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{81366871}}^1$

素因数の和:81366908

約数の個数: 16

約数和(自身を含む): 39056098560

約数和(自身を除く): 18877114552

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 81366871, 162733742, 325467484, 650934968, 2522373001, 5044746002, 10089492004, 20178984008]

約数ペア:

[(1, 20178984008), (2, 10089492004), (4, 5044746002), (8, 2522373001), (31, 650934968), (62, 325467484), (124, 162733742), (248, 81366871)]