1640802032

素因数分解:

$2^4\times {\mathrm{421}}^1\times {\mathrm{243587}}^1$

素因数の和:244016

約数の個数: 20

約数和(自身を含む): 3186618216

約数和(自身を除く): 1545816184

約数列:

[1, 2, 4, 8, 16, 421, 842, 1684, 3368, 6736, 243587, 487174, 974348, 1948696, 3897392, 102550127, 205100254, 410200508, 820401016, 1640802032]

約数ペア:

[(1, 1640802032), (2, 820401016), (4, 410200508), (8, 205100254), (16, 102550127), (421, 3897392), (842, 1948696), (1684, 974348), (3368, 487174), (6736, 243587)]