661270

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{743}}^1$

素因数の和:839

約数の個数: 16

約数和(自身を含む): 1205280

約数和(自身を除く): 544010

約数列:

[1, 2, 5, 10, 89, 178, 445, 743, 890, 1486, 3715, 7430, 66127, 132254, 330635, 661270]

約数ペア:

[(1, 661270), (2, 330635), (5, 132254), (10, 66127), (89, 7430), (178, 3715), (445, 1486), (743, 890)]