400465920

素因数分解:

$2^{13}\times 3^1\times 5^1\times {\mathrm{3259}}^1$

素因数の和:3293

約数の個数: 112

約数和(自身を含む): 1281805920

約数和(自身を除く): 881340000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 256, 320, 384, 480, 512, 640, 768, 960, 1024, 1280, 1536, 1920, 2048, 2560, 3072, 3259, 3840, 4096, 5120, 6144, 6518, 7680, 8192, 9777, 10240, 12288, 13036, 15360, 16295, 19554, 20480, 24576, 26072, 30720, 32590, 39108, 40960, 48885, 52144, 61440, 65180, 78216, 97770, 104288, 122880, 130360, 156432, 195540, 208576, 260720, 312864, 391080, 417152, 521440, 625728, 782160, 834304, 1042880, 1251456, 1564320, 1668608, 2085760, 2502912, 3128640, 3337216, 4171520, 5005824, 6257280, 6674432, 8343040, 10011648, 12514560, 13348864, 16686080, 20023296, 25029120, 26697728, 33372160, 40046592, 50058240, 66744320, 80093184, 100116480, 133488640, 200232960, 400465920]

約数ペア:

[(1, 400465920), (2, 200232960), (3, 133488640), (4, 100116480), (5, 80093184), (6, 66744320), (8, 50058240), (10, 40046592), (12, 33372160), (15, 26697728), (16, 25029120), (20, 20023296), (24, 16686080), (30, 13348864), (32, 12514560), (40, 10011648), (48, 8343040), (60, 6674432), (64, 6257280), (80, 5005824), (96, 4171520), (120, 3337216), (128, 3128640), (160, 2502912), (192, 2085760), (240, 1668608), (256, 1564320), (320, 1251456), (384, 1042880), (480, 834304), (512, 782160), (640, 625728), (768, 521440), (960, 417152), (1024, 391080), (1280, 312864), (1536, 260720), (1920, 208576), (2048, 195540), (2560, 156432), (3072, 130360), (3259, 122880), (3840, 104288), (4096, 97770), (5120, 78216), (6144, 65180), (6518, 61440), (7680, 52144), (8192, 48885), (9777, 40960), (10240, 39108), (12288, 32590), (13036, 30720), (15360, 26072), (16295, 24576), (19554, 20480)]