20029856

素因数分解:

$2^5\times 7^1\times {\mathrm{11}}^2\times {\mathrm{739}}^1$

素因数の和:778

約数の個数: 72

約数和(自身を含む): 49603680

約数和(自身を除く): 29573824

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 44, 56, 77, 88, 112, 121, 154, 176, 224, 242, 308, 352, 484, 616, 739, 847, 968, 1232, 1478, 1694, 1936, 2464, 2956, 3388, 3872, 5173, 5912, 6776, 8129, 10346, 11824, 13552, 16258, 20692, 23648, 27104, 32516, 41384, 56903, 65032, 82768, 89419, 113806, 130064, 165536, 178838, 227612, 260128, 357676, 455224, 625933, 715352, 910448, 1251866, 1430704, 1820896, 2503732, 2861408, 5007464, 10014928, 20029856]

約数ペア:

[(1, 20029856), (2, 10014928), (4, 5007464), (7, 2861408), (8, 2503732), (11, 1820896), (14, 1430704), (16, 1251866), (22, 910448), (28, 715352), (32, 625933), (44, 455224), (56, 357676), (77, 260128), (88, 227612), (112, 178838), (121, 165536), (154, 130064), (176, 113806), (224, 89419), (242, 82768), (308, 65032), (352, 56903), (484, 41384), (616, 32516), (739, 27104), (847, 23648), (968, 20692), (1232, 16258), (1478, 13552), (1694, 11824), (1936, 10346), (2464, 8129), (2956, 6776), (3388, 5912), (3872, 5173)]