989715025

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{263}}^1\times {\mathrm{11579}}^1$

素因数の和:11865

約数の個数: 24

約数和(自身を含む): 1326790080

約数和(自身を除く): 337075055

約数列:

[1, 5, 13, 25, 65, 263, 325, 1315, 3419, 6575, 11579, 17095, 57895, 85475, 150527, 289475, 752635, 3045277, 3763175, 15226385, 39588601, 76131925, 197943005, 989715025]

約数ペア:

[(1, 989715025), (5, 197943005), (13, 76131925), (25, 39588601), (65, 15226385), (263, 3763175), (325, 3045277), (1315, 752635), (3419, 289475), (6575, 150527), (11579, 85475), (17095, 57895)]