20348081572

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{307}}^1\times {\mathrm{182089}}^1$

素因数の和:182420

約数の個数: 48

約数和(自身を含む): 43969636480

約数和(自身を除く): 23621554908

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 307, 364, 614, 1228, 2149, 3991, 4298, 7982, 8596, 15964, 27937, 55874, 111748, 182089, 364178, 728356, 1274623, 2367157, 2549246, 4734314, 5098492, 9468628, 16570099, 33140198, 55901323, 66280396, 111802646, 223605292, 391309261, 726717199, 782618522, 1453434398, 1565237044, 2906868796, 5087020393, 10174040786, 20348081572]

約数ペア:

[(1, 20348081572), (2, 10174040786), (4, 5087020393), (7, 2906868796), (13, 1565237044), (14, 1453434398), (26, 782618522), (28, 726717199), (52, 391309261), (91, 223605292), (182, 111802646), (307, 66280396), (364, 55901323), (614, 33140198), (1228, 16570099), (2149, 9468628), (3991, 5098492), (4298, 4734314), (7982, 2549246), (8596, 2367157), (15964, 1274623), (27937, 728356), (55874, 364178), (111748, 182089)]