161217215

素因数分解:

$5^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{6221}}^1$

素因数の和:6370

約数の個数: 16

約数和(自身を含む): 198904896

約数和(自身を除く): 37687681

約数列:

[1, 5, 71, 73, 355, 365, 5183, 6221, 25915, 31105, 441691, 454133, 2208455, 2270665, 32243443, 161217215]

約数ペア:

[(1, 161217215), (5, 32243443), (71, 2270665), (73, 2208455), (355, 454133), (365, 441691), (5183, 31105), (6221, 25915)]