1320178970

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^4\times {\mathrm{71}}^1\times {\mathrm{127}}^1$

素因数の和:249

約数の個数: 80

約数和(自身を含む): 2671626240

約数和(自身を除く): 1351447270

約数列:

[1, 2, 5, 10, 11, 22, 55, 71, 110, 121, 127, 142, 242, 254, 355, 605, 635, 710, 781, 1210, 1270, 1331, 1397, 1562, 2662, 2794, 3905, 6655, 6985, 7810, 8591, 9017, 13310, 13970, 14641, 15367, 17182, 18034, 29282, 30734, 42955, 45085, 73205, 76835, 85910, 90170, 94501, 99187, 146410, 153670, 169037, 189002, 198374, 338074, 472505, 495935, 845185, 945010, 991870, 1039511, 1091057, 1690370, 1859407, 2079022, 2182114, 3718814, 5197555, 5455285, 9297035, 10395110, 10910570, 12001627, 18594070, 24003254, 60008135, 120016270, 132017897, 264035794, 660089485, 1320178970]

約数ペア:

[(1, 1320178970), (2, 660089485), (5, 264035794), (10, 132017897), (11, 120016270), (22, 60008135), (55, 24003254), (71, 18594070), (110, 12001627), (121, 10910570), (127, 10395110), (142, 9297035), (242, 5455285), (254, 5197555), (355, 3718814), (605, 2182114), (635, 2079022), (710, 1859407), (781, 1690370), (1210, 1091057), (1270, 1039511), (1331, 991870), (1397, 945010), (1562, 845185), (2662, 495935), (2794, 472505), (3905, 338074), (6655, 198374), (6985, 189002), (7810, 169037), (8591, 153670), (9017, 146410), (13310, 99187), (13970, 94501), (14641, 90170), (15367, 85910), (17182, 76835), (18034, 73205), (29282, 45085), (30734, 42955)]