128128

素因数分解:

$2^7\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1$

素因数の和:45

約数の個数: 64

約数和(自身を含む): 342720

約数和(自身を除く): 214592

約数列:

[1, 2, 4, 7, 8, 11, 13, 14, 16, 22, 26, 28, 32, 44, 52, 56, 64, 77, 88, 91, 104, 112, 128, 143, 154, 176, 182, 208, 224, 286, 308, 352, 364, 416, 448, 572, 616, 704, 728, 832, 896, 1001, 1144, 1232, 1408, 1456, 1664, 2002, 2288, 2464, 2912, 4004, 4576, 4928, 5824, 8008, 9152, 9856, 11648, 16016, 18304, 32032, 64064, 128128]

約数ペア:

[(1, 128128), (2, 64064), (4, 32032), (7, 18304), (8, 16016), (11, 11648), (13, 9856), (14, 9152), (16, 8008), (22, 5824), (26, 4928), (28, 4576), (32, 4004), (44, 2912), (52, 2464), (56, 2288), (64, 2002), (77, 1664), (88, 1456), (91, 1408), (104, 1232), (112, 1144), (128, 1001), (143, 896), (154, 832), (176, 728), (182, 704), (208, 616), (224, 572), (286, 448), (308, 416), (352, 364)]