20402625

素因数分解:

$3^1\times 5^3\times {\mathrm{41}}^1\times {\mathrm{1327}}^1$

素因数の和:1386

約数の個数: 32

約数和(自身を含む): 34804224

約数和(自身を除く): 14401599

約数列:

[1, 3, 5, 15, 25, 41, 75, 123, 125, 205, 375, 615, 1025, 1327, 3075, 3981, 5125, 6635, 15375, 19905, 33175, 54407, 99525, 163221, 165875, 272035, 497625, 816105, 1360175, 4080525, 6800875, 20402625]

約数ペア:

[(1, 20402625), (3, 6800875), (5, 4080525), (15, 1360175), (25, 816105), (41, 497625), (75, 272035), (123, 165875), (125, 163221), (205, 99525), (375, 54407), (615, 33175), (1025, 19905), (1327, 15375), (3075, 6635), (3981, 5125)]