20088975

素因数分解:

$3^1\times 5^2\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{139}}^1$

素因数の和:240

約数の個数: 48

約数和(自身を含む): 34997760

約数和(自身を除く): 14908785

約数列:

[1, 3, 5, 15, 25, 41, 47, 75, 123, 139, 141, 205, 235, 417, 615, 695, 705, 1025, 1175, 1927, 2085, 3075, 3475, 3525, 5699, 5781, 6533, 9635, 10425, 17097, 19599, 28495, 28905, 32665, 48175, 85485, 97995, 142475, 144525, 163325, 267853, 427425, 489975, 803559, 1339265, 4017795, 6696325, 20088975]

約数ペア:

[(1, 20088975), (3, 6696325), (5, 4017795), (15, 1339265), (25, 803559), (41, 489975), (47, 427425), (75, 267853), (123, 163325), (139, 144525), (141, 142475), (205, 97995), (235, 85485), (417, 48175), (615, 32665), (695, 28905), (705, 28495), (1025, 19599), (1175, 17097), (1927, 10425), (2085, 9635), (3075, 6533), (3475, 5781), (3525, 5699)]