1809640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{281}}^1$

素因数の和:322

約数の個数: 64

約数和(自身を含む): 4872960

約数和(自身を除く): 3063320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 92, 115, 140, 161, 184, 230, 280, 281, 322, 460, 562, 644, 805, 920, 1124, 1288, 1405, 1610, 1967, 2248, 2810, 3220, 3934, 5620, 6440, 6463, 7868, 9835, 11240, 12926, 15736, 19670, 25852, 32315, 39340, 45241, 51704, 64630, 78680, 90482, 129260, 180964, 226205, 258520, 361928, 452410, 904820, 1809640]

約数ペア:

[(1, 1809640), (2, 904820), (4, 452410), (5, 361928), (7, 258520), (8, 226205), (10, 180964), (14, 129260), (20, 90482), (23, 78680), (28, 64630), (35, 51704), (40, 45241), (46, 39340), (56, 32315), (70, 25852), (92, 19670), (115, 15736), (140, 12926), (161, 11240), (184, 9835), (230, 7868), (280, 6463), (281, 6440), (322, 5620), (460, 3934), (562, 3220), (644, 2810), (805, 2248), (920, 1967), (1124, 1610), (1288, 1405)]