20512383920

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{1723}}^1\times {\mathrm{3037}}^1$

素因数の和:4787

約数の個数: 120

約数和(自身を含む): 55528102224

約数和(自身を除く): 35015718304

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1723, 1960, 3037, 3446, 3920, 6074, 6892, 8615, 12061, 12148, 13784, 15185, 17230, 21259, 24122, 24296, 27568, 30370, 34460, 42518, 48244, 48592, 60305, 60740, 68920, 84427, 85036, 96488, 106295, 120610, 121480, 137840, 148813, 168854, 170072, 192976, 212590, 241220, 242960, 297626, 337708, 340144, 422135, 425180, 482440, 595252, 675416, 744065, 844270, 850360, 964880, 1190504, 1350832, 1488130, 1688540, 1700720, 2381008, 2976260, 3377080, 5232751, 5952520, 6754160, 10465502, 11905040, 20931004, 26163755, 36629257, 41862008, 52327510, 73258514, 83724016, 104655020, 146517028, 183146285, 209310040, 256404799, 293034056, 366292570, 418620080, 512809598, 586068112, 732585140, 1025619196, 1282023995, 1465170280, 2051238392, 2564047990, 2930340560, 4102476784, 5128095980, 10256191960, 20512383920]

約数ペア:

[(1, 20512383920), (2, 10256191960), (4, 5128095980), (5, 4102476784), (7, 2930340560), (8, 2564047990), (10, 2051238392), (14, 1465170280), (16, 1282023995), (20, 1025619196), (28, 732585140), (35, 586068112), (40, 512809598), (49, 418620080), (56, 366292570), (70, 293034056), (80, 256404799), (98, 209310040), (112, 183146285), (140, 146517028), (196, 104655020), (245, 83724016), (280, 73258514), (392, 52327510), (490, 41862008), (560, 36629257), (784, 26163755), (980, 20931004), (1723, 11905040), (1960, 10465502), (3037, 6754160), (3446, 5952520), (3920, 5232751), (6074, 3377080), (6892, 2976260), (8615, 2381008), (12061, 1700720), (12148, 1688540), (13784, 1488130), (15185, 1350832), (17230, 1190504), (21259, 964880), (24122, 850360), (24296, 844270), (27568, 744065), (30370, 675416), (34460, 595252), (42518, 482440), (48244, 425180), (48592, 422135), (60305, 340144), (60740, 337708), (68920, 297626), (84427, 242960), (85036, 241220), (96488, 212590), (106295, 192976), (120610, 170072), (121480, 168854), (137840, 148813)]