393605320

素因数分解:

$2^3\times 5^1\times {\mathrm{9840133}}^1$

素因数の和:9840144

約数の個数: 16

約数和(自身を含む): 885612060

約数和(自身を除く): 492006740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 9840133, 19680266, 39360532, 49200665, 78721064, 98401330, 196802660, 393605320]

約数ペア:

[(1, 393605320), (2, 196802660), (4, 98401330), (5, 78721064), (8, 49200665), (10, 39360532), (20, 19680266), (40, 9840133)]