20503208

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{59}}^1\times {\mathrm{359}}^1$

素因数の和:446

約数の個数: 48

約数和(自身を含む): 43092000

約数和(自身を除く): 22588792

約数列:

[1, 2, 4, 8, 11, 22, 44, 59, 88, 118, 121, 236, 242, 359, 472, 484, 649, 718, 968, 1298, 1436, 2596, 2872, 3949, 5192, 7139, 7898, 14278, 15796, 21181, 28556, 31592, 42362, 43439, 57112, 84724, 86878, 169448, 173756, 232991, 347512, 465982, 931964, 1863928, 2562901, 5125802, 10251604, 20503208]

約数ペア:

[(1, 20503208), (2, 10251604), (4, 5125802), (8, 2562901), (11, 1863928), (22, 931964), (44, 465982), (59, 347512), (88, 232991), (118, 173756), (121, 169448), (236, 86878), (242, 84724), (359, 57112), (472, 43439), (484, 42362), (649, 31592), (718, 28556), (968, 21181), (1298, 15796), (1436, 14278), (2596, 7898), (2872, 7139), (3949, 5192)]