813239980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{252559}}^1$

素因数の和:252598

約数の個数: 48

約数和(自身を含む): 2036643840

約数和(自身を除く): 1223403860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 644, 805, 1610, 3220, 252559, 505118, 1010236, 1262795, 1767913, 2525590, 3535826, 5051180, 5808857, 7071652, 8839565, 11617714, 17679130, 23235428, 29044285, 35358260, 40661999, 58088570, 81323998, 116177140, 162647996, 203309995, 406619990, 813239980]

約数ペア:

[(1, 813239980), (2, 406619990), (4, 203309995), (5, 162647996), (7, 116177140), (10, 81323998), (14, 58088570), (20, 40661999), (23, 35358260), (28, 29044285), (35, 23235428), (46, 17679130), (70, 11617714), (92, 8839565), (115, 7071652), (140, 5808857), (161, 5051180), (230, 3535826), (322, 2525590), (460, 1767913), (644, 1262795), (805, 1010236), (1610, 505118), (3220, 252559)]