20009941280

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{467}}^1\times {\mathrm{571}}^1$

素因数の和:1127

約数の個数: 192

約数和(自身を含む): 55046863872

約数和(自身を除く): 35036922592

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 67, 70, 80, 112, 134, 140, 160, 224, 268, 280, 335, 467, 469, 536, 560, 571, 670, 934, 938, 1072, 1120, 1142, 1340, 1868, 1876, 2144, 2284, 2335, 2345, 2680, 2855, 3269, 3736, 3752, 3997, 4568, 4670, 4690, 5360, 5710, 6538, 7472, 7504, 7994, 9136, 9340, 9380, 10720, 11420, 13076, 14944, 15008, 15988, 16345, 18272, 18680, 18760, 19985, 22840, 26152, 31289, 31976, 32690, 37360, 37520, 38257, 39970, 45680, 52304, 62578, 63952, 65380, 74720, 75040, 76514, 79940, 91360, 104608, 125156, 127904, 130760, 153028, 156445, 159880, 191285, 219023, 250312, 261520, 266657, 267799, 306056, 312890, 319760, 382570, 438046, 500624, 523040, 533314, 535598, 612112, 625780, 639520, 765140, 876092, 1001248, 1066628, 1071196, 1095115, 1224224, 1251560, 1333285, 1338995, 1530280, 1752184, 1866599, 2133256, 2142392, 2190230, 2503120, 2666570, 2677990, 3060560, 3504368, 3733198, 4266512, 4284784, 4380460, 5006240, 5333140, 5355980, 6121120, 7008736, 7466396, 8533024, 8569568, 8760920, 9332995, 10666280, 10711960, 14932792, 17521840, 17866019, 18665990, 21332560, 21423920, 29865584, 35043680, 35732038, 37331980, 42665120, 42847840, 59731168, 71464076, 74663960, 89330095, 125062133, 142928152, 149327920, 178660190, 250124266, 285856304, 298655840, 357320380, 500248532, 571712608, 625310665, 714640760, 1000497064, 1250621330, 1429281520, 2000994128, 2501242660, 2858563040, 4001988256, 5002485320, 10004970640, 20009941280]

約数ペア:

[(1, 20009941280), (2, 10004970640), (4, 5002485320), (5, 4001988256), (7, 2858563040), (8, 2501242660), (10, 2000994128), (14, 1429281520), (16, 1250621330), (20, 1000497064), (28, 714640760), (32, 625310665), (35, 571712608), (40, 500248532), (56, 357320380), (67, 298655840), (70, 285856304), (80, 250124266), (112, 178660190), (134, 149327920), (140, 142928152), (160, 125062133), (224, 89330095), (268, 74663960), (280, 71464076), (335, 59731168), (467, 42847840), (469, 42665120), (536, 37331980), (560, 35732038), (571, 35043680), (670, 29865584), (934, 21423920), (938, 21332560), (1072, 18665990), (1120, 17866019), (1142, 17521840), (1340, 14932792), (1868, 10711960), (1876, 10666280), (2144, 9332995), (2284, 8760920), (2335, 8569568), (2345, 8533024), (2680, 7466396), (2855, 7008736), (3269, 6121120), (3736, 5355980), (3752, 5333140), (3997, 5006240), (4568, 4380460), (4670, 4284784), (4690, 4266512), (5360, 3733198), (5710, 3504368), (6538, 3060560), (7472, 2677990), (7504, 2666570), (7994, 2503120), (9136, 2190230), (9340, 2142392), (9380, 2133256), (10720, 1866599), (11420, 1752184), (13076, 1530280), (14944, 1338995), (15008, 1333285), (15988, 1251560), (16345, 1224224), (18272, 1095115), (18680, 1071196), (18760, 1066628), (19985, 1001248), (22840, 876092), (26152, 765140), (31289, 639520), (31976, 625780), (32690, 612112), (37360, 535598), (37520, 533314), (38257, 523040), (39970, 500624), (45680, 438046), (52304, 382570), (62578, 319760), (63952, 312890), (65380, 306056), (74720, 267799), (75040, 266657), (76514, 261520), (79940, 250312), (91360, 219023), (104608, 191285), (125156, 159880), (127904, 156445), (130760, 153028)]