28178605

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{3643}}^1$

素因数の和:3685

約数の個数: 32

約数和(自身を含む): 44077824

約数和(自身を除く): 15899219

約数列:

[1, 5, 7, 13, 17, 35, 65, 85, 91, 119, 221, 455, 595, 1105, 1547, 3643, 7735, 18215, 25501, 47359, 61931, 127505, 236795, 309655, 331513, 433517, 805103, 1657565, 2167585, 4025515, 5635721, 28178605]

約数ペア:

[(1, 28178605), (5, 5635721), (7, 4025515), (13, 2167585), (17, 1657565), (35, 805103), (65, 433517), (85, 331513), (91, 309655), (119, 236795), (221, 127505), (455, 61931), (595, 47359), (1105, 25501), (1547, 18215), (3643, 7735)]