13440280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{2087}}^1$

素因数の和:2128

約数の個数: 64

約数和(自身を含む): 36080640

約数和(自身を除く): 22640360

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, 322, 460, 644, 805, 920, 1288, 1610, 2087, 3220, 4174, 6440, 8348, 10435, 14609, 16696, 20870, 29218, 41740, 48001, 58436, 73045, 83480, 96002, 116872, 146090, 192004, 240005, 292180, 336007, 384008, 480010, 584360, 672014, 960020, 1344028, 1680035, 1920040, 2688056, 3360070, 6720140, 13440280]

約数ペア:

[(1, 13440280), (2, 6720140), (4, 3360070), (5, 2688056), (7, 1920040), (8, 1680035), (10, 1344028), (14, 960020), (20, 672014), (23, 584360), (28, 480010), (35, 384008), (40, 336007), (46, 292180), (56, 240005), (70, 192004), (92, 146090), (115, 116872), (140, 96002), (161, 83480), (184, 73045), (230, 58436), (280, 48001), (322, 41740), (460, 29218), (644, 20870), (805, 16696), (920, 14609), (1288, 10435), (1610, 8348), (2087, 6440), (3220, 4174)]