30989215

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{7757}}^1$

素因数の和:7826

約数の個数: 16

約数和(自身を含む): 40217472

約数和(自身を除く): 9228257

約数列:

[1, 5, 17, 47, 85, 235, 799, 3995, 7757, 38785, 131869, 364579, 659345, 1822895, 6197843, 30989215]

約数ペア:

[(1, 30989215), (5, 6197843), (17, 1822895), (47, 659345), (85, 364579), (235, 131869), (799, 38785), (3995, 7757)]