720291312

素因数分解:

$2^4\times 3^3\times {\mathrm{13}}^1\times {\mathrm{128257}}^1$

素因数の和:128287

約数の個数: 80

約数和(自身を含む): 2226558880

約数和(自身を除く): 1506267568

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 27, 36, 39, 48, 52, 54, 72, 78, 104, 108, 117, 144, 156, 208, 216, 234, 312, 351, 432, 468, 624, 702, 936, 1404, 1872, 2808, 5616, 128257, 256514, 384771, 513028, 769542, 1026056, 1154313, 1539084, 1667341, 2052112, 2308626, 3078168, 3334682, 3462939, 4617252, 5002023, 6156336, 6669364, 6925878, 9234504, 10004046, 13338728, 13851756, 15006069, 18469008, 20008092, 26677456, 27703512, 30012138, 40016184, 45018207, 55407024, 60024276, 80032368, 90036414, 120048552, 180072828, 240097104, 360145656, 720291312]

約数ペア:

[(1, 720291312), (2, 360145656), (3, 240097104), (4, 180072828), (6, 120048552), (8, 90036414), (9, 80032368), (12, 60024276), (13, 55407024), (16, 45018207), (18, 40016184), (24, 30012138), (26, 27703512), (27, 26677456), (36, 20008092), (39, 18469008), (48, 15006069), (52, 13851756), (54, 13338728), (72, 10004046), (78, 9234504), (104, 6925878), (108, 6669364), (117, 6156336), (144, 5002023), (156, 4617252), (208, 3462939), (216, 3334682), (234, 3078168), (312, 2308626), (351, 2052112), (432, 1667341), (468, 1539084), (624, 1154313), (702, 1026056), (936, 769542), (1404, 513028), (1872, 384771), (2808, 256514), (5616, 128257)]