20138272

素因数分解:

$2^5\times 7^1\times {\mathrm{11}}^2\times {\mathrm{743}}^1$

素因数の和:782

約数の個数: 72

約数和(自身を含む): 49871808

約数和(自身を除く): 29733536

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, 743, 847, 968, 1232, 1486, 1694, 1936, 2464, 2972, 3388, 3872, 5201, 5944, 6776, 8173, 10402, 11888, 13552, 16346, 20804, 23776, 27104, 32692, 41608, 57211, 65384, 83216, 89903, 114422, 130768, 166432, 179806, 228844, 261536, 359612, 457688, 629321, 719224, 915376, 1258642, 1438448, 1830752, 2517284, 2876896, 5034568, 10069136, 20138272]

約数ペア:

[(1, 20138272), (2, 10069136), (4, 5034568), (7, 2876896), (8, 2517284), (11, 1830752), (14, 1438448), (16, 1258642), (22, 915376), (28, 719224), (32, 629321), (44, 457688), (56, 359612), (77, 261536), (88, 228844), (112, 179806), (121, 166432), (154, 130768), (176, 114422), (224, 89903), (242, 83216), (308, 65384), (352, 57211), (484, 41608), (616, 32692), (743, 27104), (847, 23776), (968, 20804), (1232, 16346), (1486, 13552), (1694, 11888), (1936, 10402), (2464, 8173), (2972, 6776), (3388, 5944), (3872, 5201)]