19680525

素因数分解:

$3^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{3803}}^1$

素因数の和:3842

約数の個数: 36

約数和(自身を含む): 36792288

約数和(自身を除く): 17111763

約数列:

[1, 3, 5, 9, 15, 23, 25, 45, 69, 75, 115, 207, 225, 345, 575, 1035, 1725, 3803, 5175, 11409, 19015, 34227, 57045, 87469, 95075, 171135, 262407, 285225, 437345, 787221, 855675, 1312035, 2186725, 3936105, 6560175, 19680525]

約数ペア:

[(1, 19680525), (3, 6560175), (5, 3936105), (9, 2186725), (15, 1312035), (23, 855675), (25, 787221), (45, 437345), (69, 285225), (75, 262407), (115, 171135), (207, 95075), (225, 87469), (345, 57045), (575, 34227), (1035, 19015), (1725, 11409), (3803, 5175)]