208438380

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{385997}}^1$

素因数の和:386015

約数の個数: 48

約数和(自身を含む): 648476640

約数和(自身を除く): 440038260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 385997, 771994, 1157991, 1543988, 1929985, 2315982, 3473973, 3859970, 4631964, 5789955, 6947946, 7719940, 10421919, 11579910, 13895892, 17369865, 20843838, 23159820, 34739730, 41687676, 52109595, 69479460, 104219190, 208438380]

約数ペア:

[(1, 208438380), (2, 104219190), (3, 69479460), (4, 52109595), (5, 41687676), (6, 34739730), (9, 23159820), (10, 20843838), (12, 17369865), (15, 13895892), (18, 11579910), (20, 10421919), (27, 7719940), (30, 6947946), (36, 5789955), (45, 4631964), (54, 3859970), (60, 3473973), (90, 2315982), (108, 1929985), (135, 1543988), (180, 1157991), (270, 771994), (540, 385997)]