2005173872

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{9640259}}^1$

素因数の和:9640280

約数の個数: 20

約数和(自身を含む): 4183872840

約数和(自身を除く): 2178698968

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 9640259, 19280518, 38561036, 77122072, 125323367, 154244144, 250646734, 501293468, 1002586936, 2005173872]

約数ペア:

[(1, 2005173872), (2, 1002586936), (4, 501293468), (8, 250646734), (13, 154244144), (16, 125323367), (26, 77122072), (52, 38561036), (104, 19280518), (208, 9640259)]