28366905

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{241}}^1$

素因数の和:334

約数の個数: 64

約数和(自身を含む): 55756800

約数和(自身を除く): 27389895

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 57, 59, 95, 105, 133, 177, 241, 285, 295, 399, 413, 665, 723, 885, 1121, 1205, 1239, 1687, 1995, 2065, 3363, 3615, 4579, 5061, 5605, 6195, 7847, 8435, 13737, 14219, 16815, 22895, 23541, 25305, 32053, 39235, 42657, 68685, 71095, 96159, 99533, 117705, 160265, 213285, 270161, 298599, 480795, 497665, 810483, 1350805, 1492995, 1891127, 4052415, 5673381, 9455635, 28366905]

約数ペア:

[(1, 28366905), (3, 9455635), (5, 5673381), (7, 4052415), (15, 1891127), (19, 1492995), (21, 1350805), (35, 810483), (57, 497665), (59, 480795), (95, 298599), (105, 270161), (133, 213285), (177, 160265), (241, 117705), (285, 99533), (295, 96159), (399, 71095), (413, 68685), (665, 42657), (723, 39235), (885, 32053), (1121, 25305), (1205, 23541), (1239, 22895), (1687, 16815), (1995, 14219), (2065, 13737), (3363, 8435), (3615, 7847), (4579, 6195), (5061, 5605)]