15390970

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{219871}}^1$

素因数の和:219885

約数の個数: 16

約数和(自身を含む): 31661568

約数和(自身を除く): 16270598

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 219871, 439742, 1099355, 1539097, 2198710, 3078194, 7695485, 15390970]

約数ペア:

[(1, 15390970), (2, 7695485), (5, 3078194), (7, 2198710), (10, 1539097), (14, 1099355), (35, 439742), (70, 219871)]