490006216

素因数分解:

$2^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{251}}^1\times {\mathrm{491}}^1$

素因数の和:826

約数の個数: 64

約数和(自身を含む): 1071221760

約数和(自身を除く): 581215544

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 71, 142, 251, 284, 491, 497, 502, 568, 982, 994, 1004, 1757, 1964, 1988, 2008, 3437, 3514, 3928, 3976, 6874, 7028, 13748, 14056, 17821, 27496, 34861, 35642, 69722, 71284, 123241, 124747, 139444, 142568, 244027, 246482, 249494, 278888, 488054, 492964, 498988, 862687, 976108, 985928, 997976, 1725374, 1952216, 3450748, 6901496, 8750111, 17500222, 35000444, 61250777, 70000888, 122501554, 245003108, 490006216]

約数ペア:

[(1, 490006216), (2, 245003108), (4, 122501554), (7, 70000888), (8, 61250777), (14, 35000444), (28, 17500222), (56, 8750111), (71, 6901496), (142, 3450748), (251, 1952216), (284, 1725374), (491, 997976), (497, 985928), (502, 976108), (568, 862687), (982, 498988), (994, 492964), (1004, 488054), (1757, 278888), (1964, 249494), (1988, 246482), (2008, 244027), (3437, 142568), (3514, 139444), (3928, 124747), (3976, 123241), (6874, 71284), (7028, 69722), (13748, 35642), (14056, 34861), (17821, 27496)]