1239845

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{421}}^1$

素因数の和:476

約数の個数: 16

約数和(自身を含む): 1620480

約数和(自身を除く): 380635

約数列:

[1, 5, 19, 31, 95, 155, 421, 589, 2105, 2945, 7999, 13051, 39995, 65255, 247969, 1239845]

約数ペア:

[(1, 1239845), (5, 247969), (19, 65255), (31, 39995), (95, 13051), (155, 7999), (421, 2945), (589, 2105)]