168905090

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{173}}^1\times {\mathrm{1097}}^1$

素因数の和:1366

約数の個数: 32

約数和(自身を含む): 309504240

約数和(自身を除く): 140599150

約数列:

[1, 2, 5, 10, 89, 173, 178, 346, 445, 865, 890, 1097, 1730, 2194, 5485, 10970, 15397, 30794, 76985, 97633, 153970, 189781, 195266, 379562, 488165, 948905, 976330, 1897810, 16890509, 33781018, 84452545, 168905090]

約数ペア:

[(1, 168905090), (2, 84452545), (5, 33781018), (10, 16890509), (89, 1897810), (173, 976330), (178, 948905), (346, 488165), (445, 379562), (865, 195266), (890, 189781), (1097, 153970), (1730, 97633), (2194, 76985), (5485, 30794), (10970, 15397)]