9999995

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{1657}}^1$

素因数の和:1750

約数の個数: 16

約数和(自身を含む): 12892608

約数和(自身を除く): 2892613

約数列:

[1, 5, 17, 71, 85, 355, 1207, 1657, 6035, 8285, 28169, 117647, 140845, 588235, 1999999, 9999995]

約数ペア:

[(1, 9999995), (5, 1999999), (17, 588235), (71, 140845), (85, 117647), (355, 28169), (1207, 8285), (1657, 6035)]