20171405168

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{389}}^1\times {\mathrm{140909}}^1$

素因数の和:141329

約数の個数: 40

約数和(自身を含む): 40886445600

約数和(自身を除く): 20715040432

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 184, 368, 389, 778, 1556, 3112, 6224, 8947, 17894, 35788, 71576, 140909, 143152, 281818, 563636, 1127272, 2254544, 3240907, 6481814, 12963628, 25927256, 51854512, 54813601, 109627202, 219254404, 438508808, 877017616, 1260712823, 2521425646, 5042851292, 10085702584, 20171405168]

約数ペア:

[(1, 20171405168), (2, 10085702584), (4, 5042851292), (8, 2521425646), (16, 1260712823), (23, 877017616), (46, 438508808), (92, 219254404), (184, 109627202), (368, 54813601), (389, 51854512), (778, 25927256), (1556, 12963628), (3112, 6481814), (6224, 3240907), (8947, 2254544), (17894, 1127272), (35788, 563636), (71576, 281818), (140909, 143152)]