12928713040

素因数分解:

$2^4\times 5^1\times {\mathrm{161608913}}^1$

素因数の和:161608926

約数の個数: 20

約数和(自身を含む): 30059258004

約数和(自身を除く): 17130544964

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 161608913, 323217826, 646435652, 808044565, 1292871304, 1616089130, 2585742608, 3232178260, 6464356520, 12928713040]

約数ペア:

[(1, 12928713040), (2, 6464356520), (4, 3232178260), (5, 2585742608), (8, 1616089130), (10, 1292871304), (16, 808044565), (20, 646435652), (40, 323217826), (80, 161608913)]