2730280

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{199}}^1$

素因数の和:231

約数の個数: 64

約数和(自身を含む): 7200000

約数和(自身を除く): 4469720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 199, 245, 280, 343, 392, 398, 490, 686, 796, 980, 995, 1372, 1393, 1592, 1715, 1960, 1990, 2744, 2786, 3430, 3980, 5572, 6860, 6965, 7960, 9751, 11144, 13720, 13930, 19502, 27860, 39004, 48755, 55720, 68257, 78008, 97510, 136514, 195020, 273028, 341285, 390040, 546056, 682570, 1365140, 2730280]

約数ペア:

[(1, 2730280), (2, 1365140), (4, 682570), (5, 546056), (7, 390040), (8, 341285), (10, 273028), (14, 195020), (20, 136514), (28, 97510), (35, 78008), (40, 68257), (49, 55720), (56, 48755), (70, 39004), (98, 27860), (140, 19502), (196, 13930), (199, 13720), (245, 11144), (280, 9751), (343, 7960), (392, 6965), (398, 6860), (490, 5572), (686, 3980), (796, 3430), (980, 2786), (995, 2744), (1372, 1990), (1393, 1960), (1592, 1715)]