205983280

素因数分解:

$2^4\times 5^1\times {\mathrm{389}}^1\times {\mathrm{6619}}^1$

素因数の和:7021

約数の個数: 40

約数和(自身を含む): 480214800

約数和(自身を除く): 274231520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 389, 778, 1556, 1945, 3112, 3890, 6224, 6619, 7780, 13238, 15560, 26476, 31120, 33095, 52952, 66190, 105904, 132380, 264760, 529520, 2574791, 5149582, 10299164, 12873955, 20598328, 25747910, 41196656, 51495820, 102991640, 205983280]

約数ペア:

[(1, 205983280), (2, 102991640), (4, 51495820), (5, 41196656), (8, 25747910), (10, 20598328), (16, 12873955), (20, 10299164), (40, 5149582), (80, 2574791), (389, 529520), (778, 264760), (1556, 132380), (1945, 105904), (3112, 66190), (3890, 52952), (6224, 33095), (6619, 31120), (7780, 26476), (13238, 15560)]