12880898

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{419}}^1\times {\mathrm{809}}^1$

素因数の和:1249

約数の個数: 16

約数和(自身を含む): 20412000

約数和(自身を除く): 7531102

約数列:

[1, 2, 19, 38, 419, 809, 838, 1618, 7961, 15371, 15922, 30742, 338971, 677942, 6440449, 12880898]

約数ペア:

[(1, 12880898), (2, 6440449), (19, 677942), (38, 338971), (419, 30742), (809, 15922), (838, 15371), (1618, 7961)]