19781230

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{282589}}^1$

素因数の和:282603

約数の個数: 16

約数和(自身を含む): 40692960

約数和(自身を除く): 20911730

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 282589, 565178, 1412945, 1978123, 2825890, 3956246, 9890615, 19781230]

約数ペア:

[(1, 19781230), (2, 9890615), (5, 3956246), (7, 2825890), (10, 1978123), (14, 1412945), (35, 565178), (70, 282589)]