42180040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{757}}^1$

素因数の和:974

約数の個数: 64

約数和(自身を含む): 109152000

約数和(自身を除く): 66971960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 199, 280, 398, 757, 796, 995, 1393, 1514, 1592, 1990, 2786, 3028, 3785, 3980, 5299, 5572, 6056, 6965, 7570, 7960, 10598, 11144, 13930, 15140, 21196, 26495, 27860, 30280, 42392, 52990, 55720, 105980, 150643, 211960, 301286, 602572, 753215, 1054501, 1205144, 1506430, 2109002, 3012860, 4218004, 5272505, 6025720, 8436008, 10545010, 21090020, 42180040]

約数ペア:

[(1, 42180040), (2, 21090020), (4, 10545010), (5, 8436008), (7, 6025720), (8, 5272505), (10, 4218004), (14, 3012860), (20, 2109002), (28, 1506430), (35, 1205144), (40, 1054501), (56, 753215), (70, 602572), (140, 301286), (199, 211960), (280, 150643), (398, 105980), (757, 55720), (796, 52990), (995, 42392), (1393, 30280), (1514, 27860), (1592, 26495), (1990, 21196), (2786, 15140), (3028, 13930), (3785, 11144), (3980, 10598), (5299, 7960), (5572, 7570), (6056, 6965)]