19382140

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{15887}}^1$

素因数の和:15957

約数の個数: 24

約数和(自身を含む): 41372352

約数和(自身を除く): 21990212

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 15887, 31774, 63548, 79435, 158870, 317740, 969107, 1938214, 3876428, 4845535, 9691070, 19382140]

約数ペア:

[(1, 19382140), (2, 9691070), (4, 4845535), (5, 3876428), (10, 1938214), (20, 969107), (61, 317740), (122, 158870), (244, 79435), (305, 63548), (610, 31774), (1220, 15887)]