19933040

素因数分解:

$2^4\times 5^1\times {\mathrm{193}}^1\times {\mathrm{1291}}^1$

素因数の和:1497

約数の個数: 40

約数和(自身を含む): 46620528

約数和(自身を除く): 26687488

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 193, 386, 772, 965, 1291, 1544, 1930, 2582, 3088, 3860, 5164, 6455, 7720, 10328, 12910, 15440, 20656, 25820, 51640, 103280, 249163, 498326, 996652, 1245815, 1993304, 2491630, 3986608, 4983260, 9966520, 19933040]

約数ペア:

[(1, 19933040), (2, 9966520), (4, 4983260), (5, 3986608), (8, 2491630), (10, 1993304), (16, 1245815), (20, 996652), (40, 498326), (80, 249163), (193, 103280), (386, 51640), (772, 25820), (965, 20656), (1291, 15440), (1544, 12910), (1930, 10328), (2582, 7720), (3088, 6455), (3860, 5164)]