278370729

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1$

素因数の和:204

約数の個数: 128

約数和(自身を含む): 548352000

約数和(自身を除く): 269981271

約数列:

[1, 3, 7, 9, 13, 19, 21, 27, 39, 57, 63, 67, 89, 91, 117, 133, 171, 189, 201, 247, 267, 273, 351, 399, 469, 513, 603, 623, 741, 801, 819, 871, 1157, 1197, 1273, 1407, 1691, 1729, 1809, 1869, 2223, 2403, 2457, 2613, 3471, 3591, 3819, 4221, 5073, 5187, 5607, 5963, 6097, 6669, 7839, 8099, 8911, 10413, 11457, 11837, 12663, 15219, 15561, 16549, 16821, 17889, 18291, 21983, 23517, 24297, 26733, 31239, 34371, 35511, 41741, 45657, 46683, 49647, 53667, 54873, 65949, 72891, 77519, 80199, 106533, 113297, 115843, 125223, 148941, 153881, 161001, 164619, 197847, 218673, 232557, 240597, 319599, 339891, 347529, 375669, 446823, 461643, 542633, 593541, 697671, 793079, 1019673, 1042587, 1127007, 1384929, 1472861, 1627899, 2093013, 2379237, 3059019, 3127761, 4154787, 4418583, 4883697, 7137711, 10310027, 13255749, 14651091, 21413133, 30930081, 39767247, 92790243, 278370729]

約数ペア:

[(1, 278370729), (3, 92790243), (7, 39767247), (9, 30930081), (13, 21413133), (19, 14651091), (21, 13255749), (27, 10310027), (39, 7137711), (57, 4883697), (63, 4418583), (67, 4154787), (89, 3127761), (91, 3059019), (117, 2379237), (133, 2093013), (171, 1627899), (189, 1472861), (201, 1384929), (247, 1127007), (267, 1042587), (273, 1019673), (351, 793079), (399, 697671), (469, 593541), (513, 542633), (603, 461643), (623, 446823), (741, 375669), (801, 347529), (819, 339891), (871, 319599), (1157, 240597), (1197, 232557), (1273, 218673), (1407, 197847), (1691, 164619), (1729, 161001), (1809, 153881), (1869, 148941), (2223, 125223), (2403, 115843), (2457, 113297), (2613, 106533), (3471, 80199), (3591, 77519), (3819, 72891), (4221, 65949), (5073, 54873), (5187, 53667), (5607, 49647), (5963, 46683), (6097, 45657), (6669, 41741), (7839, 35511), (8099, 34371), (8911, 31239), (10413, 26733), (11457, 24297), (11837, 23517), (12663, 21983), (15219, 18291), (15561, 17889), (16549, 16821)]