128623600

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{647}}^1$

素因数の和:743

約数の個数: 120

約数和(自身を含む): 358691328

約数和(自身を除く): 230067728

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 50, 56, 70, 71, 80, 100, 112, 140, 142, 175, 200, 280, 284, 350, 355, 400, 497, 560, 568, 647, 700, 710, 994, 1136, 1294, 1400, 1420, 1775, 1988, 2485, 2588, 2800, 2840, 3235, 3550, 3976, 4529, 4970, 5176, 5680, 6470, 7100, 7952, 9058, 9940, 10352, 12425, 12940, 14200, 16175, 18116, 19880, 22645, 24850, 25880, 28400, 32350, 36232, 39760, 45290, 45937, 49700, 51760, 64700, 72464, 90580, 91874, 99400, 113225, 129400, 181160, 183748, 198800, 226450, 229685, 258800, 321559, 362320, 367496, 452900, 459370, 643118, 734992, 905800, 918740, 1148425, 1286236, 1607795, 1811600, 1837480, 2296850, 2572472, 3215590, 3674960, 4593700, 5144944, 6431180, 8038975, 9187400, 12862360, 16077950, 18374800, 25724720, 32155900, 64311800, 128623600]

約数ペア:

[(1, 128623600), (2, 64311800), (4, 32155900), (5, 25724720), (7, 18374800), (8, 16077950), (10, 12862360), (14, 9187400), (16, 8038975), (20, 6431180), (25, 5144944), (28, 4593700), (35, 3674960), (40, 3215590), (50, 2572472), (56, 2296850), (70, 1837480), (71, 1811600), (80, 1607795), (100, 1286236), (112, 1148425), (140, 918740), (142, 905800), (175, 734992), (200, 643118), (280, 459370), (284, 452900), (350, 367496), (355, 362320), (400, 321559), (497, 258800), (560, 229685), (568, 226450), (647, 198800), (700, 183748), (710, 181160), (994, 129400), (1136, 113225), (1294, 99400), (1400, 91874), (1420, 90580), (1775, 72464), (1988, 64700), (2485, 51760), (2588, 49700), (2800, 45937), (2840, 45290), (3235, 39760), (3550, 36232), (3976, 32350), (4529, 28400), (4970, 25880), (5176, 24850), (5680, 22645), (6470, 19880), (7100, 18116), (7952, 16175), (9058, 14200), (9940, 12940), (10352, 12425)]