280839944

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{199}}^1$

素因数の和:331

約数の個数: 128

約数和(自身を含む): 691200000

約数和(自身を除く): 410360056

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 29, 44, 56, 58, 77, 79, 88, 116, 154, 158, 199, 203, 232, 308, 316, 319, 398, 406, 553, 616, 632, 638, 796, 812, 869, 1106, 1276, 1393, 1592, 1624, 1738, 2189, 2212, 2233, 2291, 2552, 2786, 3476, 4378, 4424, 4466, 4582, 5572, 5771, 6083, 6952, 8756, 8932, 9164, 11144, 11542, 12166, 15323, 15721, 16037, 17512, 17864, 18328, 23084, 24332, 25201, 30646, 31442, 32074, 40397, 46168, 48664, 50402, 61292, 62884, 63481, 64148, 80794, 100804, 110047, 122584, 125768, 126962, 128296, 161588, 172931, 176407, 201608, 220094, 253924, 323176, 345862, 352814, 440188, 444367, 455909, 507848, 691724, 705628, 880376, 888734, 911818, 1210517, 1383448, 1411256, 1777468, 1823636, 2421034, 3191363, 3554936, 3647272, 4842068, 5014999, 6382726, 9684136, 10029998, 12765452, 20059996, 25530904, 35104993, 40119992, 70209986, 140419972, 280839944]

約数ペア:

[(1, 280839944), (2, 140419972), (4, 70209986), (7, 40119992), (8, 35104993), (11, 25530904), (14, 20059996), (22, 12765452), (28, 10029998), (29, 9684136), (44, 6382726), (56, 5014999), (58, 4842068), (77, 3647272), (79, 3554936), (88, 3191363), (116, 2421034), (154, 1823636), (158, 1777468), (199, 1411256), (203, 1383448), (232, 1210517), (308, 911818), (316, 888734), (319, 880376), (398, 705628), (406, 691724), (553, 507848), (616, 455909), (632, 444367), (638, 440188), (796, 352814), (812, 345862), (869, 323176), (1106, 253924), (1276, 220094), (1393, 201608), (1592, 176407), (1624, 172931), (1738, 161588), (2189, 128296), (2212, 126962), (2233, 125768), (2291, 122584), (2552, 110047), (2786, 100804), (3476, 80794), (4378, 64148), (4424, 63481), (4466, 62884), (4582, 61292), (5572, 50402), (5771, 48664), (6083, 46168), (6952, 40397), (8756, 32074), (8932, 31442), (9164, 30646), (11144, 25201), (11542, 24332), (12166, 23084), (15323, 18328), (15721, 17864), (16037, 17512)]