30805520

素因数分解:

$2^4\times 5^1\times {\mathrm{385069}}^1$

素因数の和:385082

約数の個数: 20

約数和(自身を含む): 71623020

約数和(自身を除く): 40817500

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 385069, 770138, 1540276, 1925345, 3080552, 3850690, 6161104, 7701380, 15402760, 30805520]

約数ペア:

[(1, 30805520), (2, 15402760), (4, 7701380), (5, 6161104), (8, 3850690), (10, 3080552), (16, 1925345), (20, 1540276), (40, 770138), (80, 385069)]