890990030

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{1818347}}^1$

素因数の和:1818368

約数の個数: 24

約数和(自身を含む): 1865625048

約数和(自身を除く): 974635018

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 1818347, 3636694, 9091735, 12728429, 18183470, 25456858, 63642145, 89099003, 127284290, 178198006, 445495015, 890990030]

約数ペア:

[(1, 890990030), (2, 445495015), (5, 178198006), (7, 127284290), (10, 89099003), (14, 63642145), (35, 25456858), (49, 18183470), (70, 12728429), (98, 9091735), (245, 3636694), (490, 1818347)]