71820285

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{252001}}^1$

素因数の和:252028

約数の個数: 16

約数和(自身を含む): 120960960

約数和(自身を除く): 49140675

約数列:

[1, 3, 5, 15, 19, 57, 95, 285, 252001, 756003, 1260005, 3780015, 4788019, 14364057, 23940095, 71820285]

約数ペア:

[(1, 71820285), (3, 23940095), (5, 14364057), (15, 4788019), (19, 3780015), (57, 1260005), (95, 756003), (285, 252001)]