660970

素因数分解:

$2^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{421}}^1$

素因数の和:585

約数の個数: 16

約数和(自身を含む): 1200168

約数和(自身を除く): 539198

約数列:

[1, 2, 5, 10, 157, 314, 421, 785, 842, 1570, 2105, 4210, 66097, 132194, 330485, 660970]

約数ペア:

[(1, 660970), (2, 330485), (5, 132194), (10, 66097), (157, 4210), (314, 2105), (421, 1570), (785, 842)]