181462960

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{251}}^1\times {\mathrm{1291}}^1$

素因数の和:1562

約数の個数: 80

約数和(自身を含む): 484468992

約数和(自身を除く): 303006032

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 251, 280, 502, 560, 1004, 1255, 1291, 1757, 2008, 2510, 2582, 3514, 4016, 5020, 5164, 6455, 7028, 8785, 9037, 10040, 10328, 12910, 14056, 17570, 18074, 20080, 20656, 25820, 28112, 35140, 36148, 45185, 51640, 70280, 72296, 90370, 103280, 140560, 144592, 180740, 324041, 361480, 648082, 722960, 1296164, 1620205, 2268287, 2592328, 3240410, 4536574, 5184656, 6480820, 9073148, 11341435, 12961640, 18146296, 22682870, 25923280, 36292592, 45365740, 90731480, 181462960]

約数ペア:

[(1, 181462960), (2, 90731480), (4, 45365740), (5, 36292592), (7, 25923280), (8, 22682870), (10, 18146296), (14, 12961640), (16, 11341435), (20, 9073148), (28, 6480820), (35, 5184656), (40, 4536574), (56, 3240410), (70, 2592328), (80, 2268287), (112, 1620205), (140, 1296164), (251, 722960), (280, 648082), (502, 361480), (560, 324041), (1004, 180740), (1255, 144592), (1291, 140560), (1757, 103280), (2008, 90370), (2510, 72296), (2582, 70280), (3514, 51640), (4016, 45185), (5020, 36148), (5164, 35140), (6455, 28112), (7028, 25820), (8785, 20656), (9037, 20080), (10040, 18074), (10328, 17570), (12910, 14056)]