19115120

素因数分解:

$2^4\times 5^1\times {\mathrm{238939}}^1$

素因数の和:238952

約数の個数: 20

約数和(自身を含む): 44442840

約数和(自身を除く): 25327720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 238939, 477878, 955756, 1194695, 1911512, 2389390, 3823024, 4778780, 9557560, 19115120]

約数ペア:

[(1, 19115120), (2, 9557560), (4, 4778780), (5, 3823024), (8, 2389390), (10, 1911512), (16, 1194695), (20, 955756), (40, 477878), (80, 238939)]