257440330

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{18481}}^1$

素因数の和:18694

約数の個数: 32

約数和(自身を含む): 532281600

約数和(自身を除く): 274841270

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 199, 398, 995, 1393, 1990, 2786, 6965, 13930, 18481, 36962, 92405, 129367, 184810, 258734, 646835, 1293670, 3677719, 7355438, 18388595, 25744033, 36777190, 51488066, 128720165, 257440330]

約数ペア:

[(1, 257440330), (2, 128720165), (5, 51488066), (7, 36777190), (10, 25744033), (14, 18388595), (35, 7355438), (70, 3677719), (199, 1293670), (398, 646835), (995, 258734), (1393, 184810), (1990, 129367), (2786, 92405), (6965, 36962), (13930, 18481)]