2020148320

素因数分解:

$2^5\times 5^1\times {\mathrm{197}}^1\times {\mathrm{64091}}^1$

素因数の和:64303

約数の個数: 48

約数和(自身を含む): 4796901648

約数和(自身を除く): 2776753328

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 197, 394, 788, 985, 1576, 1970, 3152, 3940, 6304, 7880, 15760, 31520, 64091, 128182, 256364, 320455, 512728, 640910, 1025456, 1281820, 2050912, 2563640, 5127280, 10254560, 12625927, 25251854, 50503708, 63129635, 101007416, 126259270, 202014832, 252518540, 404029664, 505037080, 1010074160, 2020148320]

約数ペア:

[(1, 2020148320), (2, 1010074160), (4, 505037080), (5, 404029664), (8, 252518540), (10, 202014832), (16, 126259270), (20, 101007416), (32, 63129635), (40, 50503708), (80, 25251854), (160, 12625927), (197, 10254560), (394, 5127280), (788, 2563640), (985, 2050912), (1576, 1281820), (1970, 1025456), (3152, 640910), (3940, 512728), (6304, 320455), (7880, 256364), (15760, 128182), (31520, 64091)]