19115480

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{28111}}^1$

素因数の和:28139

約数の個数: 32

約数和(自身を含む): 45541440

約数和(自身を除く): 26425960

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 28111, 56222, 112444, 140555, 224888, 281110, 477887, 562220, 955774, 1124440, 1911548, 2389435, 3823096, 4778870, 9557740, 19115480]

約数ペア:

[(1, 19115480), (2, 9557740), (4, 4778870), (5, 3823096), (8, 2389435), (10, 1911548), (17, 1124440), (20, 955774), (34, 562220), (40, 477887), (68, 281110), (85, 224888), (136, 140555), (170, 112444), (340, 56222), (680, 28111)]