81688110

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{388991}}^1$

素因数の和:389008

約数の個数: 32

約数和(自身を含む): 224059392

約数和(自身を除く): 142371282

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 388991, 777982, 1166973, 1944955, 2333946, 2722937, 3889910, 5445874, 5834865, 8168811, 11669730, 13614685, 16337622, 27229370, 40844055, 81688110]

約数ペア:

[(1, 81688110), (2, 40844055), (3, 27229370), (5, 16337622), (6, 13614685), (7, 11669730), (10, 8168811), (14, 5834865), (15, 5445874), (21, 3889910), (30, 2722937), (35, 2333946), (42, 1944955), (70, 1166973), (105, 777982), (210, 388991)]