28439385

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{373}}^1$

素因数の和:434

約数の個数: 64

約数和(自身を含む): 54286848

約数和(自身を除く): 25847463

約数列:

[1, 3, 5, 13, 15, 17, 23, 39, 51, 65, 69, 85, 115, 195, 221, 255, 299, 345, 373, 391, 663, 897, 1105, 1119, 1173, 1495, 1865, 1955, 3315, 4485, 4849, 5083, 5595, 5865, 6341, 8579, 14547, 15249, 19023, 24245, 25415, 25737, 31705, 42895, 72735, 76245, 82433, 95115, 111527, 128685, 145843, 247299, 334581, 412165, 437529, 557635, 729215, 1236495, 1672905, 1895959, 2187645, 5687877, 9479795, 28439385]

約数ペア:

[(1, 28439385), (3, 9479795), (5, 5687877), (13, 2187645), (15, 1895959), (17, 1672905), (23, 1236495), (39, 729215), (51, 557635), (65, 437529), (69, 412165), (85, 334581), (115, 247299), (195, 145843), (221, 128685), (255, 111527), (299, 95115), (345, 82433), (373, 76245), (391, 72735), (663, 42895), (897, 31705), (1105, 25737), (1119, 25415), (1173, 24245), (1495, 19023), (1865, 15249), (1955, 14547), (3315, 8579), (4485, 6341), (4849, 5865), (5083, 5595)]