20781149152

素因数分解:

$2^5\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{279557}}^1$

素因数の和:279691

約数の個数: 48

約数和(自身を含む): 43114552992

約数和(自身を除く): 22333403840

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 92, 101, 184, 202, 368, 404, 736, 808, 1616, 2323, 3232, 4646, 9292, 18584, 37168, 74336, 279557, 559114, 1118228, 2236456, 4472912, 6429811, 8945824, 12859622, 25719244, 28235257, 51438488, 56470514, 102876976, 112941028, 205753952, 225882056, 451764112, 649410911, 903528224, 1298821822, 2597643644, 5195287288, 10390574576, 20781149152]

約数ペア:

[(1, 20781149152), (2, 10390574576), (4, 5195287288), (8, 2597643644), (16, 1298821822), (23, 903528224), (32, 649410911), (46, 451764112), (92, 225882056), (101, 205753952), (184, 112941028), (202, 102876976), (368, 56470514), (404, 51438488), (736, 28235257), (808, 25719244), (1616, 12859622), (2323, 8945824), (3232, 6429811), (4646, 4472912), (9292, 2236456), (18584, 1118228), (37168, 559114), (74336, 279557)]