20509370

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{4373}}^1$

素因数の和:4454

約数の個数: 32

約数和(自身を含む): 42830208

約数和(自身を除く): 22320838

約数列:

[1, 2, 5, 7, 10, 14, 35, 67, 70, 134, 335, 469, 670, 938, 2345, 4373, 4690, 8746, 21865, 30611, 43730, 61222, 153055, 292991, 306110, 585982, 1464955, 2050937, 2929910, 4101874, 10254685, 20509370]

約数ペア:

[(1, 20509370), (2, 10254685), (5, 4101874), (7, 2929910), (10, 2050937), (14, 1464955), (35, 585982), (67, 306110), (70, 292991), (134, 153055), (335, 61222), (469, 43730), (670, 30611), (938, 21865), (2345, 8746), (4373, 4690)]