2020007120

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{12157}}^1$

素因数の和:12268

約数の個数: 80

約数和(自身を含む): 4920780288

約数和(自身を除く): 2900773168

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 67, 80, 124, 134, 155, 248, 268, 310, 335, 496, 536, 620, 670, 1072, 1240, 1340, 2077, 2480, 2680, 4154, 5360, 8308, 10385, 12157, 16616, 20770, 24314, 33232, 41540, 48628, 60785, 83080, 97256, 121570, 166160, 194512, 243140, 376867, 486280, 753734, 814519, 972560, 1507468, 1629038, 1884335, 3014936, 3258076, 3768670, 4072595, 6029872, 6516152, 7537340, 8145190, 13032304, 15074680, 16290380, 25250089, 30149360, 32580760, 50500178, 65161520, 101000356, 126250445, 202000712, 252500890, 404001424, 505001780, 1010003560, 2020007120]

約数ペア:

[(1, 2020007120), (2, 1010003560), (4, 505001780), (5, 404001424), (8, 252500890), (10, 202000712), (16, 126250445), (20, 101000356), (31, 65161520), (40, 50500178), (62, 32580760), (67, 30149360), (80, 25250089), (124, 16290380), (134, 15074680), (155, 13032304), (248, 8145190), (268, 7537340), (310, 6516152), (335, 6029872), (496, 4072595), (536, 3768670), (620, 3258076), (670, 3014936), (1072, 1884335), (1240, 1629038), (1340, 1507468), (2077, 972560), (2480, 814519), (2680, 753734), (4154, 486280), (5360, 376867), (8308, 243140), (10385, 194512), (12157, 166160), (16616, 121570), (20770, 97256), (24314, 83080), (33232, 60785), (41540, 48628)]