20545128

素因数分解:

$2^3\times 3^2\times {\mathrm{71}}^1\times {\mathrm{4019}}^1$

素因数の和:4102

約数の個数: 48

約数和(自身を含む): 56440800

約数和(自身を除く): 35895672

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 71, 72, 142, 213, 284, 426, 568, 639, 852, 1278, 1704, 2556, 4019, 5112, 8038, 12057, 16076, 24114, 32152, 36171, 48228, 72342, 96456, 144684, 285349, 289368, 570698, 856047, 1141396, 1712094, 2282792, 2568141, 3424188, 5136282, 6848376, 10272564, 20545128]

約数ペア:

[(1, 20545128), (2, 10272564), (3, 6848376), (4, 5136282), (6, 3424188), (8, 2568141), (9, 2282792), (12, 1712094), (18, 1141396), (24, 856047), (36, 570698), (71, 289368), (72, 285349), (142, 144684), (213, 96456), (284, 72342), (426, 48228), (568, 36171), (639, 32152), (852, 24114), (1278, 16076), (1704, 12057), (2556, 8038), (4019, 5112)]