19453880

素因数分解:

$2^3\times 5^1\times {\mathrm{181}}^1\times {\mathrm{2687}}^1$

素因数の和:2879

約数の個数: 32

約数和(自身を含む): 44029440

約数和(自身を除く): 24575560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 181, 362, 724, 905, 1448, 1810, 2687, 3620, 5374, 7240, 10748, 13435, 21496, 26870, 53740, 107480, 486347, 972694, 1945388, 2431735, 3890776, 4863470, 9726940, 19453880]

約数ペア:

[(1, 19453880), (2, 9726940), (4, 4863470), (5, 3890776), (8, 2431735), (10, 1945388), (20, 972694), (40, 486347), (181, 107480), (362, 53740), (724, 26870), (905, 21496), (1448, 13435), (1810, 10748), (2687, 7240), (3620, 5374)]