251713280

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{2161}}^1$

素因数の和:2202

約数の個数: 144

約数和(自身を含む): 742413504

約数和(自身を除く): 490700224

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 56, 64, 65, 70, 80, 91, 104, 112, 128, 130, 140, 160, 182, 208, 224, 256, 260, 280, 320, 364, 416, 448, 455, 520, 560, 640, 728, 832, 896, 910, 1040, 1120, 1280, 1456, 1664, 1792, 1820, 2080, 2161, 2240, 2912, 3328, 3640, 4160, 4322, 4480, 5824, 7280, 8320, 8644, 8960, 10805, 11648, 14560, 15127, 16640, 17288, 21610, 23296, 28093, 29120, 30254, 34576, 43220, 56186, 58240, 60508, 69152, 75635, 86440, 112372, 116480, 121016, 138304, 140465, 151270, 172880, 196651, 224744, 242032, 276608, 280930, 302540, 345760, 393302, 449488, 484064, 553216, 561860, 605080, 691520, 786604, 898976, 968128, 983255, 1123720, 1210160, 1383040, 1573208, 1797952, 1936256, 1966510, 2247440, 2420320, 2766080, 3146416, 3595904, 3872512, 3933020, 4494880, 4840640, 6292832, 7191808, 7866040, 8989760, 9681280, 12585664, 15732080, 17979520, 19362560, 25171328, 31464160, 35959040, 50342656, 62928320, 125856640, 251713280]

約数ペア:

[(1, 251713280), (2, 125856640), (4, 62928320), (5, 50342656), (7, 35959040), (8, 31464160), (10, 25171328), (13, 19362560), (14, 17979520), (16, 15732080), (20, 12585664), (26, 9681280), (28, 8989760), (32, 7866040), (35, 7191808), (40, 6292832), (52, 4840640), (56, 4494880), (64, 3933020), (65, 3872512), (70, 3595904), (80, 3146416), (91, 2766080), (104, 2420320), (112, 2247440), (128, 1966510), (130, 1936256), (140, 1797952), (160, 1573208), (182, 1383040), (208, 1210160), (224, 1123720), (256, 983255), (260, 968128), (280, 898976), (320, 786604), (364, 691520), (416, 605080), (448, 561860), (455, 553216), (520, 484064), (560, 449488), (640, 393302), (728, 345760), (832, 302540), (896, 280930), (910, 276608), (1040, 242032), (1120, 224744), (1280, 196651), (1456, 172880), (1664, 151270), (1792, 140465), (1820, 138304), (2080, 121016), (2161, 116480), (2240, 112372), (2912, 86440), (3328, 75635), (3640, 69152), (4160, 60508), (4322, 58240), (4480, 56186), (5824, 43220), (7280, 34576), (8320, 30254), (8644, 29120), (8960, 28093), (10805, 23296), (11648, 21610), (14560, 17288), (15127, 16640)]