402736720

素因数分解:

$2^4\times 5^1\times {\mathrm{5034209}}^1$

素因数の和:5034222

約数の個数: 20

約数和(自身を含む): 936363060

約数和(自身を除く): 533626340

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 5034209, 10068418, 20136836, 25171045, 40273672, 50342090, 80547344, 100684180, 201368360, 402736720]

約数ペア:

[(1, 402736720), (2, 201368360), (4, 100684180), (5, 80547344), (8, 50342090), (10, 40273672), (16, 25171045), (20, 20136836), (40, 10068418), (80, 5034209)]