28133025

素因数分解:

$3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{347}}^1$

素因数の和:430

約数の個数: 48

約数和(自身を含む): 49711104

約数和(自身を除く): 21578079

約数列:

[1, 3, 5, 15, 23, 25, 47, 69, 75, 115, 141, 235, 345, 347, 575, 705, 1041, 1081, 1175, 1725, 1735, 3243, 3525, 5205, 5405, 7981, 8675, 16215, 16309, 23943, 26025, 27025, 39905, 48927, 81075, 81545, 119715, 199525, 244635, 375107, 407725, 598575, 1125321, 1223175, 1875535, 5626605, 9377675, 28133025]

約数ペア:

[(1, 28133025), (3, 9377675), (5, 5626605), (15, 1875535), (23, 1223175), (25, 1125321), (47, 598575), (69, 407725), (75, 375107), (115, 244635), (141, 199525), (235, 119715), (345, 81545), (347, 81075), (575, 48927), (705, 39905), (1041, 27025), (1081, 26025), (1175, 23943), (1725, 16309), (1735, 16215), (3243, 8675), (3525, 7981), (5205, 5405)]