258889785

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{71}}^1$

素因数の和:156

約数の個数: 144

約数和(自身を含む): 550198656

約数和(自身を除く): 291308871

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 41, 49, 55, 71, 77, 105, 121, 123, 147, 165, 205, 213, 231, 245, 287, 355, 363, 385, 451, 497, 539, 605, 615, 735, 781, 847, 861, 1065, 1155, 1353, 1435, 1491, 1617, 1815, 2009, 2255, 2343, 2485, 2541, 2695, 2911, 3157, 3479, 3905, 4235, 4305, 4961, 5467, 5929, 6027, 6765, 7455, 8085, 8591, 8733, 9471, 10045, 10437, 11715, 12705, 14555, 14883, 15785, 16401, 17395, 17787, 20377, 22099, 24805, 25773, 27335, 29645, 30135, 32021, 34727, 38269, 42955, 43665, 47355, 52185, 60137, 61131, 66297, 74415, 82005, 88935, 96063, 101885, 104181, 110495, 114807, 128865, 142639, 160105, 173635, 180411, 191345, 224147, 243089, 300685, 305655, 331485, 352231, 420959, 427917, 480315, 520905, 574035, 672441, 713195, 729267, 902055, 1056693, 1120735, 1215445, 1262877, 1569029, 1761155, 2104795, 2139585, 2465617, 3362205, 3646335, 4707087, 5283465, 6314385, 7396851, 7845145, 12328085, 17259319, 23535435, 36984255, 51777957, 86296595, 258889785]

約数ペア:

[(1, 258889785), (3, 86296595), (5, 51777957), (7, 36984255), (11, 23535435), (15, 17259319), (21, 12328085), (33, 7845145), (35, 7396851), (41, 6314385), (49, 5283465), (55, 4707087), (71, 3646335), (77, 3362205), (105, 2465617), (121, 2139585), (123, 2104795), (147, 1761155), (165, 1569029), (205, 1262877), (213, 1215445), (231, 1120735), (245, 1056693), (287, 902055), (355, 729267), (363, 713195), (385, 672441), (451, 574035), (497, 520905), (539, 480315), (605, 427917), (615, 420959), (735, 352231), (781, 331485), (847, 305655), (861, 300685), (1065, 243089), (1155, 224147), (1353, 191345), (1435, 180411), (1491, 173635), (1617, 160105), (1815, 142639), (2009, 128865), (2255, 114807), (2343, 110495), (2485, 104181), (2541, 101885), (2695, 96063), (2911, 88935), (3157, 82005), (3479, 74415), (3905, 66297), (4235, 61131), (4305, 60137), (4961, 52185), (5467, 47355), (5929, 43665), (6027, 42955), (6765, 38269), (7455, 34727), (8085, 32021), (8591, 30135), (8733, 29645), (9471, 27335), (10045, 25773), (10437, 24805), (11715, 22099), (12705, 20377), (14555, 17787), (14883, 17395), (15785, 16401)]