20759486560

素因数分解:

$2^5\times 5^1\times {\mathrm{1291}}^1\times {\mathrm{100501}}^1$

素因数の和:101807

約数の個数: 48

約数和(自身を含む): 49082764752

約数和(自身を除く): 28323278192

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 1291, 2582, 5164, 6455, 10328, 12910, 20656, 25820, 41312, 51640, 100501, 103280, 201002, 206560, 402004, 502505, 804008, 1005010, 1608016, 2010020, 3216032, 4020040, 8040080, 16080160, 129746791, 259493582, 518987164, 648733955, 1037974328, 1297467910, 2075948656, 2594935820, 4151897312, 5189871640, 10379743280, 20759486560]

約数ペア:

[(1, 20759486560), (2, 10379743280), (4, 5189871640), (5, 4151897312), (8, 2594935820), (10, 2075948656), (16, 1297467910), (20, 1037974328), (32, 648733955), (40, 518987164), (80, 259493582), (160, 129746791), (1291, 16080160), (2582, 8040080), (5164, 4020040), (6455, 3216032), (10328, 2010020), (12910, 1608016), (20656, 1005010), (25820, 804008), (41312, 502505), (51640, 402004), (100501, 206560), (103280, 201002)]