257716888

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^3\times {\mathrm{31}}^1\times {\mathrm{43}}^1$

素因数の和:130

約数の個数: 128

約数和(自身を含む): 603187200

約数和(自身を除く): 345470312

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 31, 43, 44, 52, 62, 86, 88, 104, 124, 143, 169, 172, 248, 286, 338, 341, 344, 403, 473, 559, 572, 676, 682, 806, 946, 1118, 1144, 1333, 1352, 1364, 1612, 1859, 1892, 2197, 2236, 2666, 2728, 3224, 3718, 3784, 4394, 4433, 4472, 5239, 5332, 6149, 7267, 7436, 8788, 8866, 10478, 10664, 12298, 14534, 14663, 14872, 17329, 17576, 17732, 20956, 24167, 24596, 29068, 29326, 34658, 35464, 41912, 48334, 49192, 57629, 58136, 58652, 68107, 69316, 79937, 94471, 96668, 115258, 117304, 136214, 138632, 159874, 188942, 190619, 193336, 225277, 230516, 272428, 319748, 377884, 381238, 450554, 461032, 544856, 639496, 749177, 755768, 762476, 901108, 1039181, 1498354, 1524952, 1802216, 2078362, 2478047, 2928601, 2996708, 4156724, 4956094, 5857202, 5993416, 8313448, 9912188, 11714404, 19824376, 23428808, 32214611, 64429222, 128858444, 257716888]

約数ペア:

[(1, 257716888), (2, 128858444), (4, 64429222), (8, 32214611), (11, 23428808), (13, 19824376), (22, 11714404), (26, 9912188), (31, 8313448), (43, 5993416), (44, 5857202), (52, 4956094), (62, 4156724), (86, 2996708), (88, 2928601), (104, 2478047), (124, 2078362), (143, 1802216), (169, 1524952), (172, 1498354), (248, 1039181), (286, 901108), (338, 762476), (341, 755768), (344, 749177), (403, 639496), (473, 544856), (559, 461032), (572, 450554), (676, 381238), (682, 377884), (806, 319748), (946, 272428), (1118, 230516), (1144, 225277), (1333, 193336), (1352, 190619), (1364, 188942), (1612, 159874), (1859, 138632), (1892, 136214), (2197, 117304), (2236, 115258), (2666, 96668), (2728, 94471), (3224, 79937), (3718, 69316), (3784, 68107), (4394, 58652), (4433, 58136), (4472, 57629), (5239, 49192), (5332, 48334), (6149, 41912), (7267, 35464), (7436, 34658), (8788, 29326), (8866, 29068), (10478, 24596), (10664, 24167), (12298, 20956), (14534, 17732), (14663, 17576), (14872, 17329)]