28646205

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{173}}^1$

素因数の和:290

約数の個数: 64

約数和(自身を含む): 56125440

約数和(自身を除く): 27479235

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 57, 83, 95, 105, 133, 173, 249, 285, 399, 415, 519, 581, 665, 865, 1211, 1245, 1577, 1743, 1995, 2595, 2905, 3287, 3633, 4731, 6055, 7885, 8715, 9861, 11039, 14359, 16435, 18165, 23009, 23655, 33117, 43077, 49305, 55195, 69027, 71795, 100513, 115045, 165585, 215385, 272821, 301539, 345135, 502565, 818463, 1364105, 1507695, 1909747, 4092315, 5729241, 9548735, 28646205]

約数ペア:

[(1, 28646205), (3, 9548735), (5, 5729241), (7, 4092315), (15, 1909747), (19, 1507695), (21, 1364105), (35, 818463), (57, 502565), (83, 345135), (95, 301539), (105, 272821), (133, 215385), (173, 165585), (249, 115045), (285, 100513), (399, 71795), (415, 69027), (519, 55195), (581, 49305), (665, 43077), (865, 33117), (1211, 23655), (1245, 23009), (1577, 18165), (1743, 16435), (1995, 14359), (2595, 11039), (2905, 9861), (3287, 8715), (3633, 7885), (4731, 6055)]