406339040

素因数分解:

$2^5\times 5^1\times {\mathrm{127}}^1\times {\mathrm{19997}}^1$

素因数の和:20139

約数の個数: 48

約数和(自身を含む): 967583232

約数和(自身を除く): 561244192

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 127, 160, 254, 508, 635, 1016, 1270, 2032, 2540, 4064, 5080, 10160, 19997, 20320, 39994, 79988, 99985, 159976, 199970, 319952, 399940, 639904, 799880, 1599760, 2539619, 3199520, 5079238, 10158476, 12698095, 20316952, 25396190, 40633904, 50792380, 81267808, 101584760, 203169520, 406339040]

約数ペア:

[(1, 406339040), (2, 203169520), (4, 101584760), (5, 81267808), (8, 50792380), (10, 40633904), (16, 25396190), (20, 20316952), (32, 12698095), (40, 10158476), (80, 5079238), (127, 3199520), (160, 2539619), (254, 1599760), (508, 799880), (635, 639904), (1016, 399940), (1270, 319952), (2032, 199970), (2540, 159976), (4064, 99985), (5080, 79988), (10160, 39994), (19997, 20320)]