2111840

素因数分解:

$2^5\times 5^1\times {\mathrm{67}}^1\times {\mathrm{197}}^1$

素因数の和:279

約数の個数: 48

約数和(自身を含む): 5089392

約数和(自身を除く): 2977552

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 67, 80, 134, 160, 197, 268, 335, 394, 536, 670, 788, 985, 1072, 1340, 1576, 1970, 2144, 2680, 3152, 3940, 5360, 6304, 7880, 10720, 13199, 15760, 26398, 31520, 52796, 65995, 105592, 131990, 211184, 263980, 422368, 527960, 1055920, 2111840]

約数ペア:

[(1, 2111840), (2, 1055920), (4, 527960), (5, 422368), (8, 263980), (10, 211184), (16, 131990), (20, 105592), (32, 65995), (40, 52796), (67, 31520), (80, 26398), (134, 15760), (160, 13199), (197, 10720), (268, 7880), (335, 6304), (394, 5360), (536, 3940), (670, 3152), (788, 2680), (985, 2144), (1072, 1970), (1340, 1576)]