39978945

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{107}}^1$

素因数の和:179

約数の個数: 72

約数和(自身を含む): 77029056

約数和(自身を除く): 37050111

約数列:

[1, 3, 5, 9, 15, 19, 23, 45, 57, 69, 95, 107, 115, 171, 207, 285, 321, 345, 361, 437, 535, 855, 963, 1035, 1083, 1311, 1605, 1805, 2033, 2185, 2461, 3249, 3933, 4815, 5415, 6099, 6555, 7383, 8303, 10165, 12305, 16245, 18297, 19665, 22149, 24909, 30495, 36915, 38627, 41515, 46759, 74727, 91485, 110745, 115881, 124545, 140277, 193135, 233795, 347643, 373635, 420831, 579405, 701385, 888421, 1738215, 2104155, 2665263, 4442105, 7995789, 13326315, 39978945]

約数ペア:

[(1, 39978945), (3, 13326315), (5, 7995789), (9, 4442105), (15, 2665263), (19, 2104155), (23, 1738215), (45, 888421), (57, 701385), (69, 579405), (95, 420831), (107, 373635), (115, 347643), (171, 233795), (207, 193135), (285, 140277), (321, 124545), (345, 115881), (361, 110745), (437, 91485), (535, 74727), (855, 46759), (963, 41515), (1035, 38627), (1083, 36915), (1311, 30495), (1605, 24909), (1805, 22149), (2033, 19665), (2185, 18297), (2461, 16245), (3249, 12305), (3933, 10165), (4815, 8303), (5415, 7383), (6099, 6555)]