16819760

素因数分解:

$2^4\times 5^1\times {\mathrm{210247}}^1$

素因数の和:210260

約数の個数: 20

約数和(自身を含む): 39106128

約数和(自身を除く): 22286368

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 210247, 420494, 840988, 1051235, 1681976, 2102470, 3363952, 4204940, 8409880, 16819760]

約数ペア:

[(1, 16819760), (2, 8409880), (4, 4204940), (5, 3363952), (8, 2102470), (10, 1681976), (16, 1051235), (20, 840988), (40, 420494), (80, 210247)]