128456286

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{191}}^1\times {\mathrm{239}}^1$

素因数の和:509

約数の個数: 64

約数和(自身を含む): 300810240

約数和(自身を除く): 172353954

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 67, 134, 191, 201, 239, 382, 402, 469, 478, 573, 717, 938, 1146, 1337, 1407, 1434, 1673, 2674, 2814, 3346, 4011, 5019, 8022, 10038, 12797, 16013, 25594, 32026, 38391, 45649, 48039, 76782, 89579, 91298, 96078, 112091, 136947, 179158, 224182, 268737, 273894, 319543, 336273, 537474, 639086, 672546, 958629, 1917258, 3058483, 6116966, 9175449, 18350898, 21409381, 42818762, 64228143, 128456286]

約数ペア:

[(1, 128456286), (2, 64228143), (3, 42818762), (6, 21409381), (7, 18350898), (14, 9175449), (21, 6116966), (42, 3058483), (67, 1917258), (134, 958629), (191, 672546), (201, 639086), (239, 537474), (382, 336273), (402, 319543), (469, 273894), (478, 268737), (573, 224182), (717, 179158), (938, 136947), (1146, 112091), (1337, 96078), (1407, 91298), (1434, 89579), (1673, 76782), (2674, 48039), (2814, 45649), (3346, 38391), (4011, 32026), (5019, 25594), (8022, 16013), (10038, 12797)]