19945810

素因数分解:

$2^1\times 5^1\times {\mathrm{761}}^1\times {\mathrm{2621}}^1$

素因数の和:3389

約数の個数: 16

約数和(自身を含む): 35963352

約数和(自身を除く): 16017542

約数列:

[1, 2, 5, 10, 761, 1522, 2621, 3805, 5242, 7610, 13105, 26210, 1994581, 3989162, 9972905, 19945810]

約数ペア:

[(1, 19945810), (2, 9972905), (5, 3989162), (10, 1994581), (761, 26210), (1522, 13105), (2621, 7610), (3805, 5242)]