20162988784

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{3701}}^1\times {\mathrm{17921}}^1$

素因数の和:21649

約数の個数: 40

約数和(自身を含む): 41135291280

約数和(自身を除く): 20972302496

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 3701, 7402, 14804, 17921, 29608, 35842, 59216, 70319, 71684, 140638, 143368, 281276, 286736, 340499, 562552, 680998, 1125104, 1361996, 2723992, 5447984, 66325621, 132651242, 265302484, 530604968, 1061209936, 1260186799, 2520373598, 5040747196, 10081494392, 20162988784]

約数ペア:

[(1, 20162988784), (2, 10081494392), (4, 5040747196), (8, 2520373598), (16, 1260186799), (19, 1061209936), (38, 530604968), (76, 265302484), (152, 132651242), (304, 66325621), (3701, 5447984), (7402, 2723992), (14804, 1361996), (17921, 1125104), (29608, 680998), (35842, 562552), (59216, 340499), (70319, 286736), (71684, 281276), (140638, 143368)]