399325010

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{814949}}^1$

素因数の和:814970

約数の個数: 24

約数和(自身を含む): 836138700

約数和(自身を除く): 436813690

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 814949, 1629898, 4074745, 5704643, 8149490, 11409286, 28523215, 39932501, 57046430, 79865002, 199662505, 399325010]

約数ペア:

[(1, 399325010), (2, 199662505), (5, 79865002), (7, 57046430), (10, 39932501), (14, 28523215), (35, 11409286), (49, 8149490), (70, 5704643), (98, 4074745), (245, 1629898), (490, 814949)]