1640392985

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{6113}}^1$

素因数の和:6194

約数の個数: 64

約数和(自身を含む): 2662377984

約数和(自身を除く): 1021984999

約数列:

[1, 5, 7, 11, 17, 35, 41, 55, 77, 85, 119, 187, 205, 287, 385, 451, 595, 697, 935, 1309, 1435, 2255, 3157, 3485, 4879, 6113, 6545, 7667, 15785, 24395, 30565, 38335, 42791, 53669, 67243, 103921, 213955, 250633, 268345, 336215, 470701, 519605, 727447, 1143131, 1253165, 1754431, 2353505, 2756963, 3637235, 4260761, 5715655, 8001917, 8772155, 13784815, 19298741, 21303805, 29825327, 40009585, 46868371, 96493705, 149126635, 234341855, 328078597, 1640392985]

約数ペア:

[(1, 1640392985), (5, 328078597), (7, 234341855), (11, 149126635), (17, 96493705), (35, 46868371), (41, 40009585), (55, 29825327), (77, 21303805), (85, 19298741), (119, 13784815), (187, 8772155), (205, 8001917), (287, 5715655), (385, 4260761), (451, 3637235), (595, 2756963), (697, 2353505), (935, 1754431), (1309, 1253165), (1435, 1143131), (2255, 727447), (3157, 519605), (3485, 470701), (4879, 336215), (6113, 268345), (6545, 250633), (7667, 213955), (15785, 103921), (24395, 67243), (30565, 53669), (38335, 42791)]