20919372010

素因数分解:

$2^1\times 5^1\times {\mathrm{401}}^1\times {\mathrm{5216801}}^1$

素因数の和:5217209

約数の個数: 16

約数和(自身を含む): 37748779272

約数和(自身を除く): 16829407262

約数列:

[1, 2, 5, 10, 401, 802, 2005, 4010, 5216801, 10433602, 26084005, 52168010, 2091937201, 4183874402, 10459686005, 20919372010]

約数ペア:

[(1, 20919372010), (2, 10459686005), (5, 4183874402), (10, 2091937201), (401, 52168010), (802, 26084005), (2005, 10433602), (4010, 5216801)]