127788970

素因数分解:

$2^1\times 5^1\times {\mathrm{647}}^1\times {\mathrm{19751}}^1$

素因数の和:20405

約数の個数: 16

約数和(自身を含む): 230387328

約数和(自身を除く): 102598358

約数列:

[1, 2, 5, 10, 647, 1294, 3235, 6470, 19751, 39502, 98755, 197510, 12778897, 25557794, 63894485, 127788970]

約数ペア:

[(1, 127788970), (2, 63894485), (5, 25557794), (10, 12778897), (647, 197510), (1294, 98755), (3235, 39502), (6470, 19751)]