19159120

素因数分解:

$2^4\times 5^1\times {\mathrm{239489}}^1$

素因数の和:239502

約数の個数: 20

約数和(自身を含む): 44545140

約数和(自身を除く): 25386020

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 239489, 478978, 957956, 1197445, 1915912, 2394890, 3831824, 4789780, 9579560, 19159120]

約数ペア:

[(1, 19159120), (2, 9579560), (4, 4789780), (5, 3831824), (8, 2394890), (10, 1915912), (16, 1197445), (20, 957956), (40, 478978), (80, 239489)]