19151120

素因数分解:

$2^4\times 5^1\times {\mathrm{239389}}^1$

素因数の和:239402

約数の個数: 20

約数和(自身を含む): 44526540

約数和(自身を除く): 25375420

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 239389, 478778, 957556, 1196945, 1915112, 2393890, 3830224, 4787780, 9575560, 19151120]

約数ペア:

[(1, 19151120), (2, 9575560), (4, 4787780), (5, 3830224), (8, 2393890), (10, 1915112), (16, 1196945), (20, 957556), (40, 478778), (80, 239389)]