9999856

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{20161}}^1$

素因数の和:20200

約数の個数: 20

約数和(自身を含む): 20000704

約数和(自身を除く): 10000848

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 20161, 40322, 80644, 161288, 322576, 624991, 1249982, 2499964, 4999928, 9999856]

約数ペア:

[(1, 9999856), (2, 4999928), (4, 2499964), (8, 1249982), (16, 624991), (31, 322576), (62, 161288), (124, 80644), (248, 40322), (496, 20161)]