251495832

素因数分解:

$2^3\times 3^1\times 7^3\times {\mathrm{137}}^1\times {\mathrm{223}}^1$

素因数の和:390

約数の個数: 128

約数和(自身を含む): 741888000

約数和(自身を除く): 490392168

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 49, 56, 84, 98, 137, 147, 168, 196, 223, 274, 294, 343, 392, 411, 446, 548, 588, 669, 686, 822, 892, 959, 1029, 1096, 1176, 1338, 1372, 1561, 1644, 1784, 1918, 2058, 2676, 2744, 2877, 3122, 3288, 3836, 4116, 4683, 5352, 5754, 6244, 6713, 7672, 8232, 9366, 10927, 11508, 12488, 13426, 18732, 20139, 21854, 23016, 26852, 30551, 32781, 37464, 40278, 43708, 46991, 53704, 61102, 65562, 76489, 80556, 87416, 91653, 93982, 122204, 131124, 140973, 152978, 161112, 183306, 187964, 213857, 229467, 244408, 262248, 281946, 305956, 366612, 375928, 427714, 458934, 563892, 611912, 641571, 733224, 855428, 917868, 1127784, 1283142, 1496999, 1710856, 1835736, 2566284, 2993998, 4490997, 5132568, 5987996, 8981994, 10478993, 11975992, 17963988, 20957986, 31436979, 35927976, 41915972, 62873958, 83831944, 125747916, 251495832]

約数ペア:

[(1, 251495832), (2, 125747916), (3, 83831944), (4, 62873958), (6, 41915972), (7, 35927976), (8, 31436979), (12, 20957986), (14, 17963988), (21, 11975992), (24, 10478993), (28, 8981994), (42, 5987996), (49, 5132568), (56, 4490997), (84, 2993998), (98, 2566284), (137, 1835736), (147, 1710856), (168, 1496999), (196, 1283142), (223, 1127784), (274, 917868), (294, 855428), (343, 733224), (392, 641571), (411, 611912), (446, 563892), (548, 458934), (588, 427714), (669, 375928), (686, 366612), (822, 305956), (892, 281946), (959, 262248), (1029, 244408), (1096, 229467), (1176, 213857), (1338, 187964), (1372, 183306), (1561, 161112), (1644, 152978), (1784, 140973), (1918, 131124), (2058, 122204), (2676, 93982), (2744, 91653), (2877, 87416), (3122, 80556), (3288, 76489), (3836, 65562), (4116, 61102), (4683, 53704), (5352, 46991), (5754, 43708), (6244, 40278), (6713, 37464), (7672, 32781), (8232, 30551), (9366, 26852), (10927, 23016), (11508, 21854), (12488, 20139), (13426, 18732)]