31977040

素因数分解:

$2^4\times 5^1\times {\mathrm{197}}^1\times {\mathrm{2029}}^1$

素因数の和:2239

約数の個数: 40

約数和(自身を含む): 74760840

約数和(自身を除く): 42783800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 197, 394, 788, 985, 1576, 1970, 2029, 3152, 3940, 4058, 7880, 8116, 10145, 15760, 16232, 20290, 32464, 40580, 81160, 162320, 399713, 799426, 1598852, 1998565, 3197704, 3997130, 6395408, 7994260, 15988520, 31977040]

約数ペア:

[(1, 31977040), (2, 15988520), (4, 7994260), (5, 6395408), (8, 3997130), (10, 3197704), (16, 1998565), (20, 1598852), (40, 799426), (80, 399713), (197, 162320), (394, 81160), (788, 40580), (985, 32464), (1576, 20290), (1970, 16232), (2029, 15760), (3152, 10145), (3940, 8116), (4058, 7880)]