20120678400

素因数分解:

$2^{12}\times 3^1\times 5^2\times {\mathrm{65497}}^1$

素因数の和:65534

約数の個数: 156

約数和(自身を含む): 66525270632

約数和(自身を除く): 46404592232

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 32, 40, 48, 50, 60, 64, 75, 80, 96, 100, 120, 128, 150, 160, 192, 200, 240, 256, 300, 320, 384, 400, 480, 512, 600, 640, 768, 800, 960, 1024, 1200, 1280, 1536, 1600, 1920, 2048, 2400, 2560, 3072, 3200, 3840, 4096, 4800, 5120, 6144, 6400, 7680, 9600, 10240, 12288, 12800, 15360, 19200, 20480, 25600, 30720, 38400, 51200, 61440, 65497, 76800, 102400, 130994, 153600, 196491, 261988, 307200, 327485, 392982, 523976, 654970, 785964, 982455, 1047952, 1309940, 1571928, 1637425, 1964910, 2095904, 2619880, 3143856, 3274850, 3929820, 4191808, 4912275, 5239760, 6287712, 6549700, 7859640, 8383616, 9824550, 10479520, 12575424, 13099400, 15719280, 16767232, 19649100, 20959040, 25150848, 26198800, 31438560, 33534464, 39298200, 41918080, 50301696, 52397600, 62877120, 67068928, 78596400, 83836160, 100603392, 104795200, 125754240, 134137856, 157192800, 167672320, 201206784, 209590400, 251508480, 268275712, 314385600, 335344640, 402413568, 419180800, 503016960, 628771200, 670689280, 804827136, 838361600, 1006033920, 1257542400, 1341378560, 1676723200, 2012067840, 2515084800, 3353446400, 4024135680, 5030169600, 6706892800, 10060339200, 20120678400]

約数ペア:

[(1, 20120678400), (2, 10060339200), (3, 6706892800), (4, 5030169600), (5, 4024135680), (6, 3353446400), (8, 2515084800), (10, 2012067840), (12, 1676723200), (15, 1341378560), (16, 1257542400), (20, 1006033920), (24, 838361600), (25, 804827136), (30, 670689280), (32, 628771200), (40, 503016960), (48, 419180800), (50, 402413568), (60, 335344640), (64, 314385600), (75, 268275712), (80, 251508480), (96, 209590400), (100, 201206784), (120, 167672320), (128, 157192800), (150, 134137856), (160, 125754240), (192, 104795200), (200, 100603392), (240, 83836160), (256, 78596400), (300, 67068928), (320, 62877120), (384, 52397600), (400, 50301696), (480, 41918080), (512, 39298200), (600, 33534464), (640, 31438560), (768, 26198800), (800, 25150848), (960, 20959040), (1024, 19649100), (1200, 16767232), (1280, 15719280), (1536, 13099400), (1600, 12575424), (1920, 10479520), (2048, 9824550), (2400, 8383616), (2560, 7859640), (3072, 6549700), (3200, 6287712), (3840, 5239760), (4096, 4912275), (4800, 4191808), (5120, 3929820), (6144, 3274850), (6400, 3143856), (7680, 2619880), (9600, 2095904), (10240, 1964910), (12288, 1637425), (12800, 1571928), (15360, 1309940), (19200, 1047952), (20480, 982455), (25600, 785964), (30720, 654970), (38400, 523976), (51200, 392982), (61440, 327485), (65497, 307200), (76800, 261988), (102400, 196491), (130994, 153600)]