643923070

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{9198901}}^1$

素因数の和:9198915

約数の個数: 16

約数和(自身を含む): 1324641888

約数和(自身を除く): 680718818

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 9198901, 18397802, 45994505, 64392307, 91989010, 128784614, 321961535, 643923070]

約数ペア:

[(1, 643923070), (2, 321961535), (5, 128784614), (7, 91989010), (10, 64392307), (14, 45994505), (35, 18397802), (70, 9198901)]