987895

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:186

約数の個数: 16

約数和(自身を含む): 1249920

約数和(自身を除く): 262025

約数列:

[1, 5, 41, 61, 79, 205, 305, 395, 2501, 3239, 4819, 12505, 16195, 24095, 197579, 987895]

約数ペア:

[(1, 987895), (5, 197579), (41, 24095), (61, 16195), (79, 12505), (205, 4819), (305, 3239), (395, 2501)]