20745208

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{739}}^1$

素因数の和:796

約数の個数: 48

約数和(自身を含む): 44289000

約数和(自身を除く): 23543792

約数列:

[1, 2, 4, 8, 11, 22, 29, 44, 58, 88, 116, 121, 232, 242, 319, 484, 638, 739, 968, 1276, 1478, 2552, 2956, 3509, 5912, 7018, 8129, 14036, 16258, 21431, 28072, 32516, 42862, 65032, 85724, 89419, 171448, 178838, 235741, 357676, 471482, 715352, 942964, 1885928, 2593151, 5186302, 10372604, 20745208]

約数ペア:

[(1, 20745208), (2, 10372604), (4, 5186302), (8, 2593151), (11, 1885928), (22, 942964), (29, 715352), (44, 471482), (58, 357676), (88, 235741), (116, 178838), (121, 171448), (232, 89419), (242, 85724), (319, 65032), (484, 42862), (638, 32516), (739, 28072), (968, 21431), (1276, 16258), (1478, 14036), (2552, 8129), (2956, 7018), (3509, 5912)]