686016668

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{38723}}^1$

素因数の和:38873

約数の個数: 24

約数和(自身を含む): 1240407168

約数和(自身を除く): 554390500

約数列:

[1, 2, 4, 43, 86, 103, 172, 206, 412, 4429, 8858, 17716, 38723, 77446, 154892, 1665089, 3330178, 3988469, 6660356, 7976938, 15953876, 171504167, 343008334, 686016668]

約数ペア:

[(1, 686016668), (2, 343008334), (4, 171504167), (43, 15953876), (86, 7976938), (103, 6660356), (172, 3988469), (206, 3330178), (412, 1665089), (4429, 154892), (8858, 77446), (17716, 38723)]