66571540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{475511}}^1$

素因数の和:475527

約数の個数: 24

約数和(自身を含む): 159772032

約数和(自身を除く): 93200492

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 475511, 951022, 1902044, 2377555, 3328577, 4755110, 6657154, 9510220, 13314308, 16642885, 33285770, 66571540]

約数ペア:

[(1, 66571540), (2, 33285770), (4, 16642885), (5, 13314308), (7, 9510220), (10, 6657154), (14, 4755110), (20, 3328577), (28, 2377555), (35, 1902044), (70, 951022), (140, 475511)]