12990910

素因数分解:

$2^1\times 5^1\times {\mathrm{997}}^1\times {\mathrm{1303}}^1$

素因数の和:2307

約数の個数: 16

約数和(自身を含む): 23425056

約数和(自身を除く): 10434146

約数列:

[1, 2, 5, 10, 997, 1303, 1994, 2606, 4985, 6515, 9970, 13030, 1299091, 2598182, 6495455, 12990910]

約数ペア:

[(1, 12990910), (2, 6495455), (5, 2598182), (10, 1299091), (997, 13030), (1303, 9970), (1994, 6515), (2606, 4985)]