19393960

素因数分解:

$2^3\times 5^1\times {\mathrm{311}}^1\times {\mathrm{1559}}^1$

素因数の和:1881

約数の個数: 32

約数和(自身を含む): 43804800

約数和(自身を除く): 24410840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 311, 622, 1244, 1555, 1559, 2488, 3110, 3118, 6220, 6236, 7795, 12440, 12472, 15590, 31180, 62360, 484849, 969698, 1939396, 2424245, 3878792, 4848490, 9696980, 19393960]

約数ペア:

[(1, 19393960), (2, 9696980), (4, 4848490), (5, 3878792), (8, 2424245), (10, 1939396), (20, 969698), (40, 484849), (311, 62360), (622, 31180), (1244, 15590), (1555, 12472), (1559, 12440), (2488, 7795), (3110, 6236), (3118, 6220)]