2019420160

素因数分解:

$2^{11}\times 5^1\times {\mathrm{199}}^1\times {\mathrm{991}}^1$

素因数の和:1217

約数の個数: 96

約数和(自身を含む): 4874688000

約数和(自身を除く): 2855267840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 199, 256, 320, 398, 512, 640, 796, 991, 995, 1024, 1280, 1592, 1982, 1990, 2048, 2560, 3184, 3964, 3980, 4955, 5120, 6368, 7928, 7960, 9910, 10240, 12736, 15856, 15920, 19820, 25472, 31712, 31840, 39640, 50944, 63424, 63680, 79280, 101888, 126848, 127360, 158560, 197209, 203776, 253696, 254720, 317120, 394418, 407552, 507392, 509440, 634240, 788836, 986045, 1014784, 1018880, 1268480, 1577672, 1972090, 2029568, 2037760, 2536960, 3155344, 3944180, 5073920, 6310688, 7888360, 10147840, 12621376, 15776720, 25242752, 31553440, 50485504, 63106880, 100971008, 126213760, 201942016, 252427520, 403884032, 504855040, 1009710080, 2019420160]

約数ペア:

[(1, 2019420160), (2, 1009710080), (4, 504855040), (5, 403884032), (8, 252427520), (10, 201942016), (16, 126213760), (20, 100971008), (32, 63106880), (40, 50485504), (64, 31553440), (80, 25242752), (128, 15776720), (160, 12621376), (199, 10147840), (256, 7888360), (320, 6310688), (398, 5073920), (512, 3944180), (640, 3155344), (796, 2536960), (991, 2037760), (995, 2029568), (1024, 1972090), (1280, 1577672), (1592, 1268480), (1982, 1018880), (1990, 1014784), (2048, 986045), (2560, 788836), (3184, 634240), (3964, 509440), (3980, 507392), (4955, 407552), (5120, 394418), (6368, 317120), (7928, 254720), (7960, 253696), (9910, 203776), (10240, 197209), (12736, 158560), (15856, 127360), (15920, 126848), (19820, 101888), (25472, 79280), (31712, 63680), (31840, 63424), (39640, 50944)]