28389075

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2647}}^1$

素因数の和:2684

約数の個数: 48

約数和(自身を含む): 55163136

約数和(自身を除く): 26774061

約数列:

[1, 3, 5, 11, 13, 15, 25, 33, 39, 55, 65, 75, 143, 165, 195, 275, 325, 429, 715, 825, 975, 2145, 2647, 3575, 7941, 10725, 13235, 29117, 34411, 39705, 66175, 87351, 103233, 145585, 172055, 198525, 378521, 436755, 516165, 727925, 860275, 1135563, 1892605, 2183775, 2580825, 5677815, 9463025, 28389075]

約数ペア:

[(1, 28389075), (3, 9463025), (5, 5677815), (11, 2580825), (13, 2183775), (15, 1892605), (25, 1135563), (33, 860275), (39, 727925), (55, 516165), (65, 436755), (75, 378521), (143, 198525), (165, 172055), (195, 145585), (275, 103233), (325, 87351), (429, 66175), (715, 39705), (825, 34411), (975, 29117), (2145, 13235), (2647, 10725), (3575, 7941)]