27821605

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1$

素因数の和:178

約数の個数: 64

約数和(自身を含む): 44789760

約数和(自身を除く): 16968155

約数列:

[1, 5, 7, 17, 19, 23, 35, 85, 95, 107, 115, 119, 133, 161, 323, 391, 437, 535, 595, 665, 749, 805, 1615, 1819, 1955, 2033, 2185, 2261, 2461, 2737, 3059, 3745, 7429, 9095, 10165, 11305, 12305, 12733, 13685, 14231, 15295, 17227, 34561, 37145, 41837, 46759, 52003, 63665, 71155, 86135, 172805, 209185, 233795, 241927, 260015, 292859, 327313, 794903, 1209635, 1464295, 1636565, 3974515, 5564321, 27821605]

約数ペア:

[(1, 27821605), (5, 5564321), (7, 3974515), (17, 1636565), (19, 1464295), (23, 1209635), (35, 794903), (85, 327313), (95, 292859), (107, 260015), (115, 241927), (119, 233795), (133, 209185), (161, 172805), (323, 86135), (391, 71155), (437, 63665), (535, 52003), (595, 46759), (665, 41837), (749, 37145), (805, 34561), (1615, 17227), (1819, 15295), (1955, 14231), (2033, 13685), (2185, 12733), (2261, 12305), (2461, 11305), (2737, 10165), (3059, 9095), (3745, 7429)]