2013828560

素因数分解:

$2^4\times 5^1\times {\mathrm{197}}^1\times {\mathrm{127781}}^1$

素因数の和:127991

約数の個数: 40

約数和(自身を含む): 4705955496

約数和(自身を除く): 2692126936

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 197, 394, 788, 985, 1576, 1970, 3152, 3940, 7880, 15760, 127781, 255562, 511124, 638905, 1022248, 1277810, 2044496, 2555620, 5111240, 10222480, 25172857, 50345714, 100691428, 125864285, 201382856, 251728570, 402765712, 503457140, 1006914280, 2013828560]

約数ペア:

[(1, 2013828560), (2, 1006914280), (4, 503457140), (5, 402765712), (8, 251728570), (10, 201382856), (16, 125864285), (20, 100691428), (40, 50345714), (80, 25172857), (197, 10222480), (394, 5111240), (788, 2555620), (985, 2044496), (1576, 1277810), (1970, 1022248), (3152, 638905), (3940, 511124), (7880, 255562), (15760, 127781)]