80353215

素因数分解:

$3^4\times 5^1\times {\mathrm{199}}^1\times {\mathrm{997}}^1$

素因数の和:1213

約数の個数: 40

約数和(自身を含む): 144909600

約数和(自身を除く): 64556385

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 199, 405, 597, 995, 997, 1791, 2985, 2991, 4985, 5373, 8955, 8973, 14955, 16119, 26865, 26919, 44865, 80595, 80757, 134595, 198403, 403785, 595209, 992015, 1785627, 2976045, 5356881, 8928135, 16070643, 26784405, 80353215]

約数ペア:

[(1, 80353215), (3, 26784405), (5, 16070643), (9, 8928135), (15, 5356881), (27, 2976045), (45, 1785627), (81, 992015), (135, 595209), (199, 403785), (405, 198403), (597, 134595), (995, 80757), (997, 80595), (1791, 44865), (2985, 26919), (2991, 26865), (4985, 16119), (5373, 14955), (8955, 8973)]