278579994

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{191}}^1$

素因数の和:273

約数の個数: 144

約数和(自身を含む): 733598208

約数和(自身を除く): 455018214

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 33, 41, 42, 49, 66, 77, 82, 98, 121, 123, 147, 154, 191, 231, 242, 246, 287, 294, 363, 382, 451, 462, 539, 573, 574, 726, 847, 861, 902, 1078, 1146, 1337, 1353, 1617, 1694, 1722, 2009, 2101, 2541, 2674, 2706, 3157, 3234, 4011, 4018, 4202, 4961, 5082, 5929, 6027, 6303, 6314, 7831, 8022, 9359, 9471, 9922, 11858, 12054, 12606, 14707, 14883, 15662, 17787, 18718, 18942, 22099, 23111, 23493, 28077, 29414, 29766, 34727, 35574, 44121, 44198, 46222, 46986, 54817, 56154, 66297, 69333, 69454, 86141, 88242, 102949, 104181, 109634, 132594, 138666, 161777, 164451, 172282, 205898, 208362, 243089, 258423, 308847, 323554, 328902, 383719, 485331, 486178, 516846, 602987, 617694, 729267, 767438, 947551, 970662, 1132439, 1151157, 1205974, 1458534, 1808961, 1895102, 2264878, 2302314, 2842653, 3397317, 3617922, 4220909, 5685306, 6632857, 6794634, 8441818, 12662727, 13265714, 19898571, 25325454, 39797142, 46429999, 92859998, 139289997, 278579994]

約数ペア:

[(1, 278579994), (2, 139289997), (3, 92859998), (6, 46429999), (7, 39797142), (11, 25325454), (14, 19898571), (21, 13265714), (22, 12662727), (33, 8441818), (41, 6794634), (42, 6632857), (49, 5685306), (66, 4220909), (77, 3617922), (82, 3397317), (98, 2842653), (121, 2302314), (123, 2264878), (147, 1895102), (154, 1808961), (191, 1458534), (231, 1205974), (242, 1151157), (246, 1132439), (287, 970662), (294, 947551), (363, 767438), (382, 729267), (451, 617694), (462, 602987), (539, 516846), (573, 486178), (574, 485331), (726, 383719), (847, 328902), (861, 323554), (902, 308847), (1078, 258423), (1146, 243089), (1337, 208362), (1353, 205898), (1617, 172282), (1694, 164451), (1722, 161777), (2009, 138666), (2101, 132594), (2541, 109634), (2674, 104181), (2706, 102949), (3157, 88242), (3234, 86141), (4011, 69454), (4018, 69333), (4202, 66297), (4961, 56154), (5082, 54817), (5929, 46986), (6027, 46222), (6303, 44198), (6314, 44121), (7831, 35574), (8022, 34727), (9359, 29766), (9471, 29414), (9922, 28077), (11858, 23493), (12054, 23111), (12606, 22099), (14707, 18942), (14883, 18718), (15662, 17787)]