256970896

素因数分解:

$2^4\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1327}}^1$

素因数の和:1381

約数の個数: 120

約数和(自身を含む): 657041280

約数和(自身を除く): 400070384

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 19, 26, 28, 38, 49, 52, 56, 76, 91, 98, 104, 112, 133, 152, 182, 196, 208, 247, 266, 304, 364, 392, 494, 532, 637, 728, 784, 931, 988, 1064, 1274, 1327, 1456, 1729, 1862, 1976, 2128, 2548, 2654, 3458, 3724, 3952, 5096, 5308, 6916, 7448, 9289, 10192, 10616, 12103, 13832, 14896, 17251, 18578, 21232, 24206, 25213, 27664, 34502, 37156, 48412, 50426, 65023, 69004, 74312, 96824, 100852, 120757, 130046, 138008, 148624, 176491, 193648, 201704, 241514, 260092, 276016, 327769, 352982, 403408, 483028, 520184, 655538, 705964, 845299, 966056, 1040368, 1235437, 1311076, 1411928, 1690598, 1932112, 2294383, 2470874, 2622152, 2823856, 3381196, 4588766, 4941748, 5244304, 6762392, 9177532, 9883496, 13524784, 16060681, 18355064, 19766992, 32121362, 36710128, 64242724, 128485448, 256970896]

約数ペア:

[(1, 256970896), (2, 128485448), (4, 64242724), (7, 36710128), (8, 32121362), (13, 19766992), (14, 18355064), (16, 16060681), (19, 13524784), (26, 9883496), (28, 9177532), (38, 6762392), (49, 5244304), (52, 4941748), (56, 4588766), (76, 3381196), (91, 2823856), (98, 2622152), (104, 2470874), (112, 2294383), (133, 1932112), (152, 1690598), (182, 1411928), (196, 1311076), (208, 1235437), (247, 1040368), (266, 966056), (304, 845299), (364, 705964), (392, 655538), (494, 520184), (532, 483028), (637, 403408), (728, 352982), (784, 327769), (931, 276016), (988, 260092), (1064, 241514), (1274, 201704), (1327, 193648), (1456, 176491), (1729, 148624), (1862, 138008), (1976, 130046), (2128, 120757), (2548, 100852), (2654, 96824), (3458, 74312), (3724, 69004), (3952, 65023), (5096, 50426), (5308, 48412), (6916, 37156), (7448, 34502), (9289, 27664), (10192, 25213), (10616, 24206), (12103, 21232), (13832, 18578), (14896, 17251)]