19405240

素因数分解:

$2^3\times 5^1\times {\mathrm{485131}}^1$

素因数の和:485142

約数の個数: 16

約数和(自身を含む): 43661880

約数和(自身を除く): 24256640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 485131, 970262, 1940524, 2425655, 3881048, 4851310, 9702620, 19405240]

約数ペア:

[(1, 19405240), (2, 9702620), (4, 4851310), (5, 3881048), (8, 2425655), (10, 1940524), (20, 970262), (40, 485131)]