19788970

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{887}}^1$

素因数の和:1014

約数の個数: 32

約数和(自身を含む): 37594368

約数和(自身を除く): 17805398

約数列:

[1, 2, 5, 10, 23, 46, 97, 115, 194, 230, 485, 887, 970, 1774, 2231, 4435, 4462, 8870, 11155, 20401, 22310, 40802, 86039, 102005, 172078, 204010, 430195, 860390, 1978897, 3957794, 9894485, 19788970]

約数ペア:

[(1, 19788970), (2, 9894485), (5, 3957794), (10, 1978897), (23, 860390), (46, 430195), (97, 204010), (115, 172078), (194, 102005), (230, 86039), (485, 40802), (887, 22310), (970, 20401), (1774, 11155), (2231, 8870), (4435, 4462)]