19816480

素因数分解:

$2^5\times 5^1\times {\mathrm{123853}}^1$

素因数の和:123868

約数の個数: 24

約数和(自身を含む): 46816812

約数和(自身を除く): 27000332

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 123853, 247706, 495412, 619265, 990824, 1238530, 1981648, 2477060, 3963296, 4954120, 9908240, 19816480]

約数ペア:

[(1, 19816480), (2, 9908240), (4, 4954120), (5, 3963296), (8, 2477060), (10, 1981648), (16, 1238530), (20, 990824), (32, 619265), (40, 495412), (80, 247706), (160, 123853)]