31036040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{557}}^1$

素因数の和:774

約数の個数: 64

約数和(自身を含む): 80352000

約数和(自身を除く): 49315960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 199, 280, 398, 557, 796, 995, 1114, 1393, 1592, 1990, 2228, 2785, 2786, 3899, 3980, 4456, 5570, 5572, 6965, 7798, 7960, 11140, 11144, 13930, 15596, 19495, 22280, 27860, 31192, 38990, 55720, 77980, 110843, 155960, 221686, 443372, 554215, 775901, 886744, 1108430, 1551802, 2216860, 3103604, 3879505, 4433720, 6207208, 7759010, 15518020, 31036040]

約数ペア:

[(1, 31036040), (2, 15518020), (4, 7759010), (5, 6207208), (7, 4433720), (8, 3879505), (10, 3103604), (14, 2216860), (20, 1551802), (28, 1108430), (35, 886744), (40, 775901), (56, 554215), (70, 443372), (140, 221686), (199, 155960), (280, 110843), (398, 77980), (557, 55720), (796, 38990), (995, 31192), (1114, 27860), (1393, 22280), (1592, 19495), (1990, 15596), (2228, 13930), (2785, 11144), (2786, 11140), (3899, 7960), (3980, 7798), (4456, 6965), (5570, 5572)]