645038080

素因数分解:

$2^{15}\times 5^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1$

素因数の和:193

約数の個数: 128

約数和(自身を含む): 1610588160

約数和(自身を除く): 965550080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 127, 128, 155, 160, 248, 254, 256, 310, 320, 496, 508, 512, 620, 635, 640, 992, 1016, 1024, 1240, 1270, 1280, 1984, 2032, 2048, 2480, 2540, 2560, 3937, 3968, 4064, 4096, 4960, 5080, 5120, 7874, 7936, 8128, 8192, 9920, 10160, 10240, 15748, 15872, 16256, 16384, 19685, 19840, 20320, 20480, 31496, 31744, 32512, 32768, 39370, 39680, 40640, 40960, 62992, 63488, 65024, 78740, 79360, 81280, 81920, 125984, 126976, 130048, 157480, 158720, 162560, 163840, 251968, 253952, 260096, 314960, 317440, 325120, 503936, 507904, 520192, 629920, 634880, 650240, 1007872, 1015808, 1040384, 1259840, 1269760, 1300480, 2015744, 2080768, 2519680, 2539520, 2600960, 4031488, 4161536, 5039360, 5079040, 5201920, 8062976, 10078720, 10403840, 16125952, 20157440, 20807680, 32251904, 40314880, 64503808, 80629760, 129007616, 161259520, 322519040, 645038080]

約数ペア:

[(1, 645038080), (2, 322519040), (4, 161259520), (5, 129007616), (8, 80629760), (10, 64503808), (16, 40314880), (20, 32251904), (31, 20807680), (32, 20157440), (40, 16125952), (62, 10403840), (64, 10078720), (80, 8062976), (124, 5201920), (127, 5079040), (128, 5039360), (155, 4161536), (160, 4031488), (248, 2600960), (254, 2539520), (256, 2519680), (310, 2080768), (320, 2015744), (496, 1300480), (508, 1269760), (512, 1259840), (620, 1040384), (635, 1015808), (640, 1007872), (992, 650240), (1016, 634880), (1024, 629920), (1240, 520192), (1270, 507904), (1280, 503936), (1984, 325120), (2032, 317440), (2048, 314960), (2480, 260096), (2540, 253952), (2560, 251968), (3937, 163840), (3968, 162560), (4064, 158720), (4096, 157480), (4960, 130048), (5080, 126976), (5120, 125984), (7874, 81920), (7936, 81280), (8128, 79360), (8192, 78740), (9920, 65024), (10160, 63488), (10240, 62992), (15748, 40960), (15872, 40640), (16256, 39680), (16384, 39370), (19685, 32768), (19840, 32512), (20320, 31744), (20480, 31496)]