25895120

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1$

素因数の和:228

約数の個数: 80

約数和(自身を含む): 62995968

約数和(自身を除く): 37100848

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 71, 80, 94, 97, 142, 188, 194, 235, 284, 355, 376, 388, 470, 485, 568, 710, 752, 776, 940, 970, 1136, 1420, 1552, 1880, 1940, 2840, 3337, 3760, 3880, 4559, 5680, 6674, 6887, 7760, 9118, 13348, 13774, 16685, 18236, 22795, 26696, 27548, 33370, 34435, 36472, 45590, 53392, 55096, 66740, 68870, 72944, 91180, 110192, 133480, 137740, 182360, 266960, 275480, 323689, 364720, 550960, 647378, 1294756, 1618445, 2589512, 3236890, 5179024, 6473780, 12947560, 25895120]

約数ペア:

[(1, 25895120), (2, 12947560), (4, 6473780), (5, 5179024), (8, 3236890), (10, 2589512), (16, 1618445), (20, 1294756), (40, 647378), (47, 550960), (71, 364720), (80, 323689), (94, 275480), (97, 266960), (142, 182360), (188, 137740), (194, 133480), (235, 110192), (284, 91180), (355, 72944), (376, 68870), (388, 66740), (470, 55096), (485, 53392), (568, 45590), (710, 36472), (752, 34435), (776, 33370), (940, 27548), (970, 26696), (1136, 22795), (1420, 18236), (1552, 16685), (1880, 13774), (1940, 13348), (2840, 9118), (3337, 7760), (3760, 6887), (3880, 6674), (4559, 5680)]