80871201

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{6661}}^1$

素因数の和:6757

約数の個数: 24

約数和(自身を含む): 124712640

約数和(自身を除く): 43841439

約数列:

[1, 3, 9, 19, 57, 71, 171, 213, 639, 1349, 4047, 6661, 12141, 19983, 59949, 126559, 379677, 472931, 1139031, 1418793, 4256379, 8985689, 26957067, 80871201]

約数ペア:

[(1, 80871201), (3, 26957067), (9, 8985689), (19, 4256379), (57, 1418793), (71, 1139031), (171, 472931), (213, 379677), (639, 126559), (1349, 59949), (4047, 19983), (6661, 12141)]