28408534

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{73}}^1$

素因数の和:138

約数の個数: 72

約数和(自身を含む): 57854088

約数和(自身を除く): 29445554

約数列:

[1, 2, 7, 11, 14, 19, 22, 38, 49, 73, 77, 98, 133, 146, 154, 209, 266, 361, 418, 511, 539, 722, 803, 931, 1022, 1078, 1387, 1463, 1606, 1862, 2527, 2774, 2926, 3577, 3971, 5054, 5621, 7154, 7942, 9709, 10241, 11242, 15257, 17689, 19418, 20482, 26353, 27797, 30514, 35378, 39347, 52706, 55594, 67963, 78694, 106799, 135926, 184471, 194579, 213598, 289883, 368942, 389158, 579766, 747593, 1291297, 1495186, 2029181, 2582594, 4058362, 14204267, 28408534]

約数ペア:

[(1, 28408534), (2, 14204267), (7, 4058362), (11, 2582594), (14, 2029181), (19, 1495186), (22, 1291297), (38, 747593), (49, 579766), (73, 389158), (77, 368942), (98, 289883), (133, 213598), (146, 194579), (154, 184471), (209, 135926), (266, 106799), (361, 78694), (418, 67963), (511, 55594), (539, 52706), (722, 39347), (803, 35378), (931, 30514), (1022, 27797), (1078, 26353), (1387, 20482), (1463, 19418), (1606, 17689), (1862, 15257), (2527, 11242), (2774, 10241), (2926, 9709), (3577, 7942), (3971, 7154), (5054, 5621)]