18531137025

素因数分解:

$3^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{66047}}^1$

素因数の和:66135

約数の個数: 72

約数和(自身を含む): 35134894080

約数和(自身を除く): 16603757055

約数列:

[1, 3, 5, 9, 15, 25, 29, 43, 45, 75, 87, 129, 145, 215, 225, 261, 387, 435, 645, 725, 1075, 1247, 1305, 1935, 2175, 3225, 3741, 6235, 6525, 9675, 11223, 18705, 31175, 56115, 66047, 93525, 198141, 280575, 330235, 594423, 990705, 1651175, 1915363, 2840021, 2972115, 4953525, 5746089, 8520063, 9576815, 14200105, 14860575, 17238267, 25560189, 28730445, 42600315, 47884075, 71000525, 82360609, 86191335, 127800945, 143652225, 213001575, 247081827, 411803045, 430956675, 639004725, 741245481, 1235409135, 2059015225, 3706227405, 6177045675, 18531137025]

約数ペア:

[(1, 18531137025), (3, 6177045675), (5, 3706227405), (9, 2059015225), (15, 1235409135), (25, 741245481), (29, 639004725), (43, 430956675), (45, 411803045), (75, 247081827), (87, 213001575), (129, 143652225), (145, 127800945), (215, 86191335), (225, 82360609), (261, 71000525), (387, 47884075), (435, 42600315), (645, 28730445), (725, 25560189), (1075, 17238267), (1247, 14860575), (1305, 14200105), (1935, 9576815), (2175, 8520063), (3225, 5746089), (3741, 4953525), (6235, 2972115), (6525, 2840021), (9675, 1915363), (11223, 1651175), (18705, 990705), (31175, 594423), (56115, 330235), (66047, 280575), (93525, 198141)]