19925690

素因数分解:

$2^1\times 5^1\times {\mathrm{401}}^1\times {\mathrm{4969}}^1$

素因数の和:5377

約数の個数: 16

約数和(自身を含む): 35962920

約数和(自身を除く): 16037230

約数列:

[1, 2, 5, 10, 401, 802, 2005, 4010, 4969, 9938, 24845, 49690, 1992569, 3985138, 9962845, 19925690]

約数ペア:

[(1, 19925690), (2, 9962845), (5, 3985138), (10, 1992569), (401, 49690), (802, 24845), (2005, 9938), (4010, 4969)]