20756656

素因数分解:

$2^4\times {\mathrm{157}}^1\times {\mathrm{8263}}^1$

素因数の和:8428

約数の個数: 20

約数和(自身を含む): 40477072

約数和(自身を除く): 19720416

約数列:

[1, 2, 4, 8, 16, 157, 314, 628, 1256, 2512, 8263, 16526, 33052, 66104, 132208, 1297291, 2594582, 5189164, 10378328, 20756656]

約数ペア:

[(1, 20756656), (2, 10378328), (4, 5189164), (8, 2594582), (16, 1297291), (157, 132208), (314, 66104), (628, 33052), (1256, 16526), (2512, 8263)]