16256720

素因数分解:

$2^4\times 5^1\times {\mathrm{203209}}^1$

素因数の和:203222

約数の個数: 20

約数和(自身を含む): 37797060

約数和(自身を除く): 21540340

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 203209, 406418, 812836, 1016045, 1625672, 2032090, 3251344, 4064180, 8128360, 16256720]

約数ペア:

[(1, 16256720), (2, 8128360), (4, 4064180), (5, 3251344), (8, 2032090), (10, 1625672), (16, 1016045), (20, 812836), (40, 406418), (80, 203209)]