12970990

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{18269}}^1$

素因数の和:18347

約数の個数: 16

約数和(自身を含む): 23677920

約数和(自身を除く): 10706930

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 18269, 36538, 91345, 182690, 1297099, 2594198, 6485495, 12970990]

約数ペア:

[(1, 12970990), (2, 6485495), (5, 2594198), (10, 1297099), (71, 182690), (142, 91345), (355, 36538), (710, 18269)]