26880560

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{2087}}^1$

素因数の和:2130

約数の個数: 80

約数和(自身を含む): 74566656

約数和(自身を除く): 47686096

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 35, 40, 46, 56, 70, 80, 92, 112, 115, 140, 161, 184, 230, 280, 322, 368, 460, 560, 644, 805, 920, 1288, 1610, 1840, 2087, 2576, 3220, 4174, 6440, 8348, 10435, 12880, 14609, 16696, 20870, 29218, 33392, 41740, 48001, 58436, 73045, 83480, 96002, 116872, 146090, 166960, 192004, 233744, 240005, 292180, 336007, 384008, 480010, 584360, 672014, 768016, 960020, 1168720, 1344028, 1680035, 1920040, 2688056, 3360070, 3840080, 5376112, 6720140, 13440280, 26880560]

約数ペア:

[(1, 26880560), (2, 13440280), (4, 6720140), (5, 5376112), (7, 3840080), (8, 3360070), (10, 2688056), (14, 1920040), (16, 1680035), (20, 1344028), (23, 1168720), (28, 960020), (35, 768016), (40, 672014), (46, 584360), (56, 480010), (70, 384008), (80, 336007), (92, 292180), (112, 240005), (115, 233744), (140, 192004), (161, 166960), (184, 146090), (230, 116872), (280, 96002), (322, 83480), (368, 73045), (460, 58436), (560, 48001), (644, 41740), (805, 33392), (920, 29218), (1288, 20870), (1610, 16696), (1840, 14609), (2087, 12880), (2576, 10435), (3220, 8348), (4174, 6440)]