256578560

素因数分解:

$2^{10}\times 5^1\times 7^1\times {\mathrm{7159}}^1$

素因数の和:7191

約数の個数: 88

約数和(自身を含む): 703512960

約数和(自身を除く): 446934400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 256, 280, 320, 448, 512, 560, 640, 896, 1024, 1120, 1280, 1792, 2240, 2560, 3584, 4480, 5120, 7159, 7168, 8960, 14318, 17920, 28636, 35795, 35840, 50113, 57272, 71590, 100226, 114544, 143180, 200452, 229088, 250565, 286360, 400904, 458176, 501130, 572720, 801808, 916352, 1002260, 1145440, 1603616, 1832704, 2004520, 2290880, 3207232, 3665408, 4009040, 4581760, 6414464, 7330816, 8018080, 9163520, 12828928, 16036160, 18327040, 25657856, 32072320, 36654080, 51315712, 64144640, 128289280, 256578560]

約数ペア:

[(1, 256578560), (2, 128289280), (4, 64144640), (5, 51315712), (7, 36654080), (8, 32072320), (10, 25657856), (14, 18327040), (16, 16036160), (20, 12828928), (28, 9163520), (32, 8018080), (35, 7330816), (40, 6414464), (56, 4581760), (64, 4009040), (70, 3665408), (80, 3207232), (112, 2290880), (128, 2004520), (140, 1832704), (160, 1603616), (224, 1145440), (256, 1002260), (280, 916352), (320, 801808), (448, 572720), (512, 501130), (560, 458176), (640, 400904), (896, 286360), (1024, 250565), (1120, 229088), (1280, 200452), (1792, 143180), (2240, 114544), (2560, 100226), (3584, 71590), (4480, 57272), (5120, 50113), (7159, 35840), (7168, 35795), (8960, 28636), (14318, 17920)]