1981291440

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{127}}^1\times {\mathrm{65003}}^1$

素因数の和:65146

約数の個数: 80

約数和(自身を含む): 6190460928

約数和(自身を除く): 4209169488

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 127, 240, 254, 381, 508, 635, 762, 1016, 1270, 1524, 1905, 2032, 2540, 3048, 3810, 5080, 6096, 7620, 10160, 15240, 30480, 65003, 130006, 195009, 260012, 325015, 390018, 520024, 650030, 780036, 975045, 1040048, 1300060, 1560072, 1950090, 2600120, 3120144, 3900180, 5200240, 7800360, 8255381, 15600720, 16510762, 24766143, 33021524, 41276905, 49532286, 66043048, 82553810, 99064572, 123830715, 132086096, 165107620, 198129144, 247661430, 330215240, 396258288, 495322860, 660430480, 990645720, 1981291440]

約数ペア:

[(1, 1981291440), (2, 990645720), (3, 660430480), (4, 495322860), (5, 396258288), (6, 330215240), (8, 247661430), (10, 198129144), (12, 165107620), (15, 132086096), (16, 123830715), (20, 99064572), (24, 82553810), (30, 66043048), (40, 49532286), (48, 41276905), (60, 33021524), (80, 24766143), (120, 16510762), (127, 15600720), (240, 8255381), (254, 7800360), (381, 5200240), (508, 3900180), (635, 3120144), (762, 2600120), (1016, 1950090), (1270, 1560072), (1524, 1300060), (1905, 1040048), (2032, 975045), (2540, 780036), (3048, 650030), (3810, 520024), (5080, 390018), (6096, 325015), (7620, 260012), (10160, 195009), (15240, 130006), (30480, 65003)]