520121469

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{97}}^1\times {\mathrm{103}}^1$

素因数の和:314

約数の個数: 64

約数和(自身を含む): 842756096

約数和(自身を除く): 322634627

約数列:

[1, 3, 7, 21, 37, 67, 97, 103, 111, 201, 259, 291, 309, 469, 679, 721, 777, 1407, 2037, 2163, 2479, 3589, 3811, 6499, 6901, 7437, 9991, 10767, 11433, 17353, 19497, 20703, 25123, 26677, 29973, 45493, 48307, 52059, 69937, 75369, 80031, 136479, 144921, 209811, 240463, 255337, 369667, 669397, 721389, 766011, 1109001, 1683241, 1787359, 2008191, 2587669, 4685779, 5049723, 5362077, 7763007, 14057337, 24767689, 74303067, 173373823, 520121469]

約数ペア:

[(1, 520121469), (3, 173373823), (7, 74303067), (21, 24767689), (37, 14057337), (67, 7763007), (97, 5362077), (103, 5049723), (111, 4685779), (201, 2587669), (259, 2008191), (291, 1787359), (309, 1683241), (469, 1109001), (679, 766011), (721, 721389), (777, 669397), (1407, 369667), (2037, 255337), (2163, 240463), (2479, 209811), (3589, 144921), (3811, 136479), (6499, 80031), (6901, 75369), (7437, 69937), (9991, 52059), (10767, 48307), (11433, 45493), (17353, 29973), (19497, 26677), (20703, 25123)]