81008640

素因数分解:

$2^{11}\times 3^3\times 5^1\times {\mathrm{293}}^1$

素因数の和:329

約数の個数: 192

約数和(自身を含む): 288943200

約数和(自身を除く): 207934560

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 90, 96, 108, 120, 128, 135, 144, 160, 180, 192, 216, 240, 256, 270, 288, 293, 320, 360, 384, 432, 480, 512, 540, 576, 586, 640, 720, 768, 864, 879, 960, 1024, 1080, 1152, 1172, 1280, 1440, 1465, 1536, 1728, 1758, 1920, 2048, 2160, 2304, 2344, 2560, 2637, 2880, 2930, 3072, 3456, 3516, 3840, 4320, 4395, 4608, 4688, 5120, 5274, 5760, 5860, 6144, 6912, 7032, 7680, 7911, 8640, 8790, 9216, 9376, 10240, 10548, 11520, 11720, 13185, 13824, 14064, 15360, 15822, 17280, 17580, 18432, 18752, 21096, 23040, 23440, 26370, 27648, 28128, 30720, 31644, 34560, 35160, 37504, 39555, 42192, 46080, 46880, 52740, 55296, 56256, 63288, 69120, 70320, 75008, 79110, 84384, 92160, 93760, 105480, 112512, 126576, 138240, 140640, 150016, 158220, 168768, 187520, 210960, 225024, 253152, 276480, 281280, 300032, 316440, 337536, 375040, 421920, 450048, 506304, 562560, 600064, 632880, 675072, 750080, 843840, 900096, 1012608, 1125120, 1265760, 1350144, 1500160, 1687680, 1800192, 2025216, 2250240, 2531520, 2700288, 3000320, 3375360, 4050432, 4500480, 5063040, 5400576, 6750720, 8100864, 9000960, 10126080, 13501440, 16201728, 20252160, 27002880, 40504320, 81008640]

約数ペア:

[(1, 81008640), (2, 40504320), (3, 27002880), (4, 20252160), (5, 16201728), (6, 13501440), (8, 10126080), (9, 9000960), (10, 8100864), (12, 6750720), (15, 5400576), (16, 5063040), (18, 4500480), (20, 4050432), (24, 3375360), (27, 3000320), (30, 2700288), (32, 2531520), (36, 2250240), (40, 2025216), (45, 1800192), (48, 1687680), (54, 1500160), (60, 1350144), (64, 1265760), (72, 1125120), (80, 1012608), (90, 900096), (96, 843840), (108, 750080), (120, 675072), (128, 632880), (135, 600064), (144, 562560), (160, 506304), (180, 450048), (192, 421920), (216, 375040), (240, 337536), (256, 316440), (270, 300032), (288, 281280), (293, 276480), (320, 253152), (360, 225024), (384, 210960), (432, 187520), (480, 168768), (512, 158220), (540, 150016), (576, 140640), (586, 138240), (640, 126576), (720, 112512), (768, 105480), (864, 93760), (879, 92160), (960, 84384), (1024, 79110), (1080, 75008), (1152, 70320), (1172, 69120), (1280, 63288), (1440, 56256), (1465, 55296), (1536, 52740), (1728, 46880), (1758, 46080), (1920, 42192), (2048, 39555), (2160, 37504), (2304, 35160), (2344, 34560), (2560, 31644), (2637, 30720), (2880, 28128), (2930, 27648), (3072, 26370), (3456, 23440), (3516, 23040), (3840, 21096), (4320, 18752), (4395, 18432), (4608, 17580), (4688, 17280), (5120, 15822), (5274, 15360), (5760, 14064), (5860, 13824), (6144, 13185), (6912, 11720), (7032, 11520), (7680, 10548), (7911, 10240), (8640, 9376), (8790, 9216)]