20004112

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{2861}}^1$

素因数の和:2911

約数の個数: 40

約数和(自身を含む): 42586560

約数和(自身を除く): 22582448

約数列:

[1, 2, 4, 8, 16, 19, 23, 38, 46, 76, 92, 152, 184, 304, 368, 437, 874, 1748, 2861, 3496, 5722, 6992, 11444, 22888, 45776, 54359, 65803, 108718, 131606, 217436, 263212, 434872, 526424, 869744, 1052848, 1250257, 2500514, 5001028, 10002056, 20004112]

約数ペア:

[(1, 20004112), (2, 10002056), (4, 5001028), (8, 2500514), (16, 1250257), (19, 1052848), (23, 869744), (38, 526424), (46, 434872), (76, 263212), (92, 217436), (152, 131606), (184, 108718), (304, 65803), (368, 54359), (437, 45776), (874, 22888), (1748, 11444), (2861, 6992), (3496, 5722)]