28005145

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1831}}^1$

素因数の和:1885

約数の個数: 32

約数和(自身を含む): 42209280

約数和(自身を除く): 14204135

約数列:

[1, 5, 7, 19, 23, 35, 95, 115, 133, 161, 437, 665, 805, 1831, 2185, 3059, 9155, 12817, 15295, 34789, 42113, 64085, 173945, 210565, 243523, 294791, 800147, 1217615, 1473955, 4000735, 5601029, 28005145]

約数ペア:

[(1, 28005145), (5, 5601029), (7, 4000735), (19, 1473955), (23, 1217615), (35, 800147), (95, 294791), (115, 243523), (133, 210565), (161, 173945), (437, 64085), (665, 42113), (805, 34789), (1831, 15295), (2185, 12817), (3059, 9155)]