19327720

素因数分解:

$2^3\times 5^1\times {\mathrm{271}}^1\times {\mathrm{1783}}^1$

素因数の和:2065

約数の個数: 32

約数和(自身を含む): 43672320

約数和(自身を除く): 24344600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 271, 542, 1084, 1355, 1783, 2168, 2710, 3566, 5420, 7132, 8915, 10840, 14264, 17830, 35660, 71320, 483193, 966386, 1932772, 2415965, 3865544, 4831930, 9663860, 19327720]

約数ペア:

[(1, 19327720), (2, 9663860), (4, 4831930), (5, 3865544), (8, 2415965), (10, 1932772), (20, 966386), (40, 483193), (271, 71320), (542, 35660), (1084, 17830), (1355, 14264), (1783, 10840), (2168, 8915), (2710, 7132), (3566, 5420)]