904820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{281}}^1$

素因数の和:320

約数の個数: 48

約数和(自身を含む): 2274048

約数和(自身を除く): 1369228

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 281, 322, 460, 562, 644, 805, 1124, 1405, 1610, 1967, 2810, 3220, 3934, 5620, 6463, 7868, 9835, 12926, 19670, 25852, 32315, 39340, 45241, 64630, 90482, 129260, 180964, 226205, 452410, 904820]

約数ペア:

[(1, 904820), (2, 452410), (4, 226205), (5, 180964), (7, 129260), (10, 90482), (14, 64630), (20, 45241), (23, 39340), (28, 32315), (35, 25852), (46, 19670), (70, 12926), (92, 9835), (115, 7868), (140, 6463), (161, 5620), (230, 3934), (281, 3220), (322, 2810), (460, 1967), (562, 1610), (644, 1405), (805, 1124)]