18843860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{281}}^1\times {\mathrm{479}}^1$

素因数の和:776

約数の個数: 48

約数和(自身を含む): 45480960

約数和(自身を除く): 26637100

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 281, 479, 562, 958, 1124, 1405, 1916, 1967, 2395, 2810, 3353, 3934, 4790, 5620, 6706, 7868, 9580, 9835, 13412, 16765, 19670, 33530, 39340, 67060, 134599, 269198, 538396, 672995, 942193, 1345990, 1884386, 2691980, 3768772, 4710965, 9421930, 18843860]

約数ペア:

[(1, 18843860), (2, 9421930), (4, 4710965), (5, 3768772), (7, 2691980), (10, 1884386), (14, 1345990), (20, 942193), (28, 672995), (35, 538396), (70, 269198), (140, 134599), (281, 67060), (479, 39340), (562, 33530), (958, 19670), (1124, 16765), (1405, 13412), (1916, 9835), (1967, 9580), (2395, 7868), (2810, 6706), (3353, 5620), (3934, 4790)]