289704818

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{281}}^1\times {\mathrm{2087}}^1$

素因数の和:2402

約数の個数: 32

約数和(自身を含む): 494605440

約数和(自身を除く): 204900622

約数列:

[1, 2, 13, 19, 26, 38, 247, 281, 494, 562, 2087, 3653, 4174, 5339, 7306, 10678, 27131, 39653, 54262, 69407, 79306, 138814, 515489, 586447, 1030978, 1172894, 7623811, 11142493, 15247622, 22284986, 144852409, 289704818]

約数ペア:

[(1, 289704818), (2, 144852409), (13, 22284986), (19, 15247622), (26, 11142493), (38, 7623811), (247, 1172894), (281, 1030978), (494, 586447), (562, 515489), (2087, 138814), (3653, 79306), (4174, 69407), (5339, 54262), (7306, 39653), (10678, 27131)]