19875856

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1$

素因数の和:129

約数の個数: 160

約数和(自身を含む): 55496448

約数和(自身を除く): 35620592

約数列:

[1, 2, 4, 7, 8, 11, 13, 14, 16, 17, 22, 26, 28, 34, 44, 52, 56, 68, 73, 77, 88, 91, 104, 112, 119, 136, 143, 146, 154, 176, 182, 187, 208, 221, 238, 272, 286, 292, 308, 364, 374, 442, 476, 511, 572, 584, 616, 728, 748, 803, 884, 949, 952, 1001, 1022, 1144, 1168, 1232, 1241, 1309, 1456, 1496, 1547, 1606, 1768, 1898, 1904, 2002, 2044, 2288, 2431, 2482, 2618, 2992, 3094, 3212, 3536, 3796, 4004, 4088, 4862, 4964, 5236, 5621, 6188, 6424, 6643, 7592, 8008, 8176, 8687, 9724, 9928, 10439, 10472, 11242, 12376, 12848, 13286, 13651, 15184, 16016, 16133, 17017, 17374, 19448, 19856, 20878, 20944, 22484, 24752, 26572, 27302, 32266, 34034, 34748, 38896, 41756, 44968, 53144, 54604, 64532, 68068, 69496, 73073, 83512, 89936, 95557, 106288, 109208, 112931, 129064, 136136, 138992, 146146, 167024, 177463, 191114, 218416, 225862, 258128, 272272, 292292, 354926, 382228, 451724, 584584, 709852, 764456, 903448, 1169168, 1242241, 1419704, 1528912, 1806896, 2484482, 2839408, 4968964, 9937928, 19875856]

約数ペア:

[(1, 19875856), (2, 9937928), (4, 4968964), (7, 2839408), (8, 2484482), (11, 1806896), (13, 1528912), (14, 1419704), (16, 1242241), (17, 1169168), (22, 903448), (26, 764456), (28, 709852), (34, 584584), (44, 451724), (52, 382228), (56, 354926), (68, 292292), (73, 272272), (77, 258128), (88, 225862), (91, 218416), (104, 191114), (112, 177463), (119, 167024), (136, 146146), (143, 138992), (146, 136136), (154, 129064), (176, 112931), (182, 109208), (187, 106288), (208, 95557), (221, 89936), (238, 83512), (272, 73073), (286, 69496), (292, 68068), (308, 64532), (364, 54604), (374, 53144), (442, 44968), (476, 41756), (511, 38896), (572, 34748), (584, 34034), (616, 32266), (728, 27302), (748, 26572), (803, 24752), (884, 22484), (949, 20944), (952, 20878), (1001, 19856), (1022, 19448), (1144, 17374), (1168, 17017), (1232, 16133), (1241, 16016), (1309, 15184), (1456, 13651), (1496, 13286), (1547, 12848), (1606, 12376), (1768, 11242), (1898, 10472), (1904, 10439), (2002, 9928), (2044, 9724), (2288, 8687), (2431, 8176), (2482, 8008), (2618, 7592), (2992, 6643), (3094, 6424), (3212, 6188), (3536, 5621), (3796, 5236), (4004, 4964), (4088, 4862)]