16651280

素因数分解:

$2^4\times 5^1\times {\mathrm{208141}}^1$

素因数の和:208154

約数の個数: 20

約数和(自身を含む): 38714412

約数和(自身を除く): 22063132

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 208141, 416282, 832564, 1040705, 1665128, 2081410, 3330256, 4162820, 8325640, 16651280]

約数ペア:

[(1, 16651280), (2, 8325640), (4, 4162820), (5, 3330256), (8, 2081410), (10, 1665128), (16, 1040705), (20, 832564), (40, 416282), (80, 208141)]