20123640008

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{61352561}}^1$

素因数の和:61352608

約数の個数: 16

約数和(自身を含む): 38652114060

約数和(自身を除く): 18528474052

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 61352561, 122705122, 245410244, 490820488, 2515455001, 5030910002, 10061820004, 20123640008]

約数ペア:

[(1, 20123640008), (2, 10061820004), (4, 5030910002), (8, 2515455001), (41, 490820488), (82, 245410244), (164, 122705122), (328, 61352561)]