258481160

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{923147}}^1$

素因数の和:923165

約数の個数: 32

約数和(自身を含む): 664666560

約数和(自身を除く): 406185400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 923147, 1846294, 3692588, 4615735, 6462029, 7385176, 9231470, 12924058, 18462940, 25848116, 32310145, 36925880, 51696232, 64620290, 129240580, 258481160]

約数ペア:

[(1, 258481160), (2, 129240580), (4, 64620290), (5, 51696232), (7, 36925880), (8, 32310145), (10, 25848116), (14, 18462940), (20, 12924058), (28, 9231470), (35, 7385176), (40, 6462029), (56, 4615735), (70, 3692588), (140, 1846294), (280, 923147)]