7640025

素因数分解:

$3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1$

素因数の和:182

約数の個数: 48

約数和(自身を含む): 13618176

約数和(自身を除く): 5978151

約数列:

[1, 3, 5, 15, 23, 25, 43, 69, 75, 103, 115, 129, 215, 309, 345, 515, 575, 645, 989, 1075, 1545, 1725, 2369, 2575, 2967, 3225, 4429, 4945, 7107, 7725, 11845, 13287, 14835, 22145, 24725, 35535, 59225, 66435, 74175, 101867, 110725, 177675, 305601, 332175, 509335, 1528005, 2546675, 7640025]

約数ペア:

[(1, 7640025), (3, 2546675), (5, 1528005), (15, 509335), (23, 332175), (25, 305601), (43, 177675), (69, 110725), (75, 101867), (103, 74175), (115, 66435), (129, 59225), (215, 35535), (309, 24725), (345, 22145), (515, 14835), (575, 13287), (645, 11845), (989, 7725), (1075, 7107), (1545, 4945), (1725, 4429), (2369, 3225), (2575, 2967)]