81566992

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{392149}}^1$

素因数の和:392170

約数の個数: 20

約数和(自身を含む): 170193100

約数和(自身を除く): 88626108

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 392149, 784298, 1568596, 3137192, 5097937, 6274384, 10195874, 20391748, 40783496, 81566992]

約数ペア:

[(1, 81566992), (2, 40783496), (4, 20391748), (8, 10195874), (13, 6274384), (16, 5097937), (26, 3137192), (52, 1568596), (104, 784298), (208, 392149)]