20512139776

素因数分解:

$2^9\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{15391}}^1$

素因数の和:15565

約数の個数: 80

約数和(自身を含む): 43459004160

約数和(自身を除く): 22946864384

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 128, 137, 152, 256, 274, 304, 512, 548, 608, 1096, 1216, 2192, 2432, 2603, 4384, 4864, 5206, 8768, 9728, 10412, 15391, 17536, 20824, 30782, 35072, 41648, 61564, 70144, 83296, 123128, 166592, 246256, 292429, 333184, 492512, 584858, 666368, 985024, 1169716, 1332736, 1970048, 2108567, 2339432, 3940096, 4217134, 4678864, 7880192, 8434268, 9357728, 16868536, 18715456, 33737072, 37430912, 40062773, 67474144, 74861824, 80125546, 134948288, 149723648, 160251092, 269896576, 320502184, 539793152, 641004368, 1079586304, 1282008736, 2564017472, 5128034944, 10256069888, 20512139776]

約数ペア:

[(1, 20512139776), (2, 10256069888), (4, 5128034944), (8, 2564017472), (16, 1282008736), (19, 1079586304), (32, 641004368), (38, 539793152), (64, 320502184), (76, 269896576), (128, 160251092), (137, 149723648), (152, 134948288), (256, 80125546), (274, 74861824), (304, 67474144), (512, 40062773), (548, 37430912), (608, 33737072), (1096, 18715456), (1216, 16868536), (2192, 9357728), (2432, 8434268), (2603, 7880192), (4384, 4678864), (4864, 4217134), (5206, 3940096), (8768, 2339432), (9728, 2108567), (10412, 1970048), (15391, 1332736), (17536, 1169716), (20824, 985024), (30782, 666368), (35072, 584858), (41648, 492512), (61564, 333184), (70144, 292429), (83296, 246256), (123128, 166592)]