25771575

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^2\times {\mathrm{29}}^1\times {\mathrm{41}}^1$

素因数の和:117

約数の個数: 72

約数和(自身を含む): 47965680

約数和(自身を除く): 22194105

約数列:

[1, 3, 5, 15, 17, 25, 29, 41, 51, 75, 85, 87, 123, 145, 205, 255, 289, 425, 435, 493, 615, 697, 725, 867, 1025, 1189, 1275, 1445, 1479, 2091, 2175, 2465, 3075, 3485, 3567, 4335, 5945, 7225, 7395, 8381, 10455, 11849, 12325, 17425, 17835, 20213, 21675, 25143, 29725, 35547, 36975, 41905, 52275, 59245, 60639, 89175, 101065, 125715, 177735, 209525, 296225, 303195, 343621, 505325, 628575, 888675, 1030863, 1515975, 1718105, 5154315, 8590525, 25771575]

約数ペア:

[(1, 25771575), (3, 8590525), (5, 5154315), (15, 1718105), (17, 1515975), (25, 1030863), (29, 888675), (41, 628575), (51, 505325), (75, 343621), (85, 303195), (87, 296225), (123, 209525), (145, 177735), (205, 125715), (255, 101065), (289, 89175), (425, 60639), (435, 59245), (493, 52275), (615, 41905), (697, 36975), (725, 35547), (867, 29725), (1025, 25143), (1189, 21675), (1275, 20213), (1445, 17835), (1479, 17425), (2091, 12325), (2175, 11849), (2465, 10455), (3075, 8381), (3485, 7395), (3567, 7225), (4335, 5945)]