257221930

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{3674599}}^1$

素因数の和:3674613

約数の個数: 16

約数和(自身を含む): 529142400

約数和(自身を除く): 271920470

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 3674599, 7349198, 18372995, 25722193, 36745990, 51444386, 128610965, 257221930]

約数ペア:

[(1, 257221930), (2, 128610965), (5, 51444386), (7, 36745990), (10, 25722193), (14, 18372995), (35, 7349198), (70, 3674599)]